97890271488 has 432 divisors, whose sum is σ = 316631952000. Its totient is φ = 28904325120.

The previous prime is 97890271441. The next prime is 97890271537. The reversal of 97890271488 is 88417209879.

97890271488 is a `hidden beast` number, since 9 + 7 + 89 + 0 + 2 + 71 + 488 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148093878 + ... + 148094538.

Almost surely, 2^97890271488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97890271488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158315976000).

97890271488 is an abundant number, since it is smaller than the sum of its proper divisors (218741680512).

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

97890271488 is a wasteful number, since it uses less digits than its factorization.

97890271488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 63.

The spelling of 97890271488 in words is "ninety-seven billion, eight hundred ninety million, two hundred seventy-one thousand, four hundred eighty-eight".