195770904942 has 48 divisors (see below), whose sum is σ = 405359441280. Its totient is φ = 63030184560.

The previous prime is 195770904937. The next prime is 195770904991. The reversal of 195770904942 is 249409077591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2983159 + ... + 3048077.

It is an arithmetic number, because the mean of its divisors is an integer number (8444988360).

Almost surely, 2^195770904942 is an apocalyptic number.

195770904942 is an abundant number, since it is smaller than the sum of its proper divisors (209588536338).

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

195770904942 is a wasteful number, since it uses less digits than its factorization.

195770904942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65509 (or 65478 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 195770904942 in words is "one hundred ninety-five billion, seven hundred seventy million, nine hundred four thousand, nine hundred forty-two".