195087815825980 has 96 divisors (see below), whose sum is σ = 519148739354112. Its totient is φ = 59809762540800.

The previous prime is 195087815825977. The next prime is 195087815826053. The reversal of 195087815825980 is 89528518780591.

It is a junction number, because it is equal to n+sod(n) for n = 195087815825897 and 195087815825906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1038269994 + ... + 1038457873.

It is an arithmetic number, because the mean of its divisors is an integer number (5407799368272).

Almost surely, 2^{195087815825980} is an apocalyptic number.

195087815825980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195087815825980 is an abundant number, since it is smaller than the sum of its proper divisors (324060923528132).

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

195087815825980 is a wasteful number, since it uses less digits than its factorization.

195087815825980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076727955 (or 2076727953 counting only the distinct ones).

The product of its (nonzero) digits is 580608000, while the sum is 76.

The spelling of 195087815825980 in words is "one hundred ninety-five trillion, eighty-seven billion, eight hundred fifteen million, eight hundred twenty-five thousand, nine hundred eighty".