97077891942 has 48 divisors (see below), whose sum is σ = 220476464208. Its totient is φ = 30835848960.

The previous prime is 97077891923. The next prime is 97077891971. The reversal of 97077891942 is 24919877079.

It is a self number, because there is not a number n which added to its sum of digits gives 97077891942.

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, 1497823 + ... + 1561290.

It is an arithmetic number, because the mean of its divisors is an integer number (4593259671).

Almost surely, 2^97077891942 is an apocalyptic number.

97077891942 is an abundant number, since it is smaller than the sum of its proper divisors (123398572266).

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

97077891942 is a wasteful number, since it uses less digits than its factorization.

97077891942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059205 (or 3059202 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 63.

The spelling of 97077891942 in words is "ninety-seven billion, seventy-seven million, eight hundred ninety-one thousand, nine hundred forty-two".