97842590872 has 32 divisors (see below), whose sum is σ = 200273179680. Its totient is φ = 44539511040.

The previous prime is 97842590863. The next prime is 97842590873. The reversal of 97842590872 is 27809524879.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 97842590872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97842590873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6436204 + ... + 6451387.

It is an arithmetic number, because the mean of its divisors is an integer number (6258536865).

Almost surely, 2^97842590872 is an apocalyptic number.

It is an amenable number.

97842590872 is an abundant number, since it is smaller than the sum of its proper divisors (102430588808).

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

97842590872 is a wasteful number, since it uses less digits than its factorization.

97842590872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12887683 (or 12887679 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 97842590872 in words is "ninety-seven billion, eight hundred forty-two million, five hundred ninety thousand, eight hundred seventy-two".