195134859648 has 256 divisors, whose sum is σ = 583386552000. Its totient is φ = 64205291520.

The previous prime is 195134859631. The next prime is 195134859653. The reversal of 195134859648 is 846958431591.

195134859648 is a `hidden beast` number, since 1 + 9 + 5 + 1 + 34 + 8 + 596 + 4 + 8 = 666.

195134859648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×195134859648² (a number of 23 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 237679078 + ... + 237679898.

Almost surely, 2^195134859648 is an apocalyptic number.

195134859648 is a gapful number since it is divisible by the number (18) 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 195134859648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291693276000).

195134859648 is an abundant number, since it is smaller than the sum of its proper divisors (388251692352).

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

195134859648 is an equidigital number, since it uses as much as digits as its factorization.

195134859648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650 (or 1632 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 63.

The spelling of 195134859648 in words is "one hundred ninety-five billion, one hundred thirty-four million, eight hundred fifty-nine thousand, six hundred forty-eight".