97151393640 has 128 divisors (see below), whose sum is σ = 334834974720. Its totient is φ = 22089734400.

The previous prime is 97151393621. The next prime is 97151393699. The reversal of 97151393640 is 4639315179.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 97151393640.

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, 142326 + ... + 463205.

It is an arithmetic number, because the mean of its divisors is an integer number (2615898240).

Almost surely, 2^97151393640 is an apocalyptic number.

It is an amenable number.

97151393640 is an abundant number, since it is smaller than the sum of its proper divisors (237683581080).

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

97151393640 is a wasteful number, since it uses less digits than its factorization.

97151393640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605743 (or 605739 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 97151393640 in words is "ninety-seven billion, one hundred fifty-one million, three hundred ninety-three thousand, six hundred forty".