97915420892 has 12 divisors (see below), whose sum is σ = 171357542496. Its totient is φ = 48956123040.

The previous prime is 97915420871. The next prime is 97915420901. The reversal of 97915420892 is 29802451979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252209 + ... + 509352.

It is an arithmetic number, because the mean of its divisors is an integer number (14279795208).

Almost surely, 2^97915420892 is an apocalyptic number.

It is an amenable number.

97915420892 is a deficient number, since it is larger than the sum of its proper divisors (73442121604).

97915420892 is a wasteful number, since it uses less digits than its factorization.

97915420892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793708 (or 793706 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 97915420892 in words is "ninety-seven billion, nine hundred fifteen million, four hundred twenty thousand, eight hundred ninety-two".