195187541880 has 256 divisors, whose sum is σ = 635298048000. Its totient is φ = 47813939712.

The previous prime is 195187541867. The next prime is 195187541891. The reversal of 195187541880 is 88145781591.

It is a happy number.

195187541880 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 195187541880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13620399 + ... + 13634721.

It is an arithmetic number, because the mean of its divisors is an integer number (2481633000).

Almost surely, 2^195187541880 is an apocalyptic number.

195187541880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195187541880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317649024000).

195187541880 is an abundant number, since it is smaller than the sum of its proper divisors (440110506120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195187541880 is a wasteful number, since it uses less digits than its factorization.

195187541880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14538 (or 14534 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 57.

The spelling of 195187541880 in words is "one hundred ninety-five billion, one hundred eighty-seven million, five hundred forty-one thousand, eight hundred eighty".