97157023480 has 32 divisors (see below), whose sum is σ = 238476331440. Its totient is φ = 35329826560.

The previous prime is 97157023477. The next prime is 97157023549. The reversal of 97157023480 is 8432075179.

It is a super-2 number, since 2×97157023480² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97157023480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110405269 + ... + 110406148.

Almost surely, 2^97157023480 is an apocalyptic number.

It is an amenable number.

97157023480 is an abundant number, since it is smaller than the sum of its proper divisors (141319307960).

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

97157023480 is a wasteful number, since it uses less digits than its factorization.

97157023480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220811439 (or 220811435 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 97157023480 in words is "ninety-seven billion, one hundred fifty-seven million, twenty-three thousand, four hundred eighty".