97731885132 has 108 divisors (see below), whose sum is σ = 302503557720. Its totient is φ = 26453734272.

The previous prime is 97731885109. The next prime is 97731885133. The reversal of 97731885132 is 23158813779.

It is a happy number.

97731885132 is a `hidden beast` number, since 97 + 7 + 31 + 8 + 8 + 513 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (97731885133) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1424473 + ... + 1491504.

Almost surely, 2^97731885132 is an apocalyptic number.

It is an amenable number.

97731885132 is an abundant number, since it is smaller than the sum of its proper divisors (204771672588).

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

97731885132 is a wasteful number, since it uses less digits than its factorization.

97731885132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916020 (or 2916008 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The spelling of 97731885132 in words is "ninety-seven billion, seven hundred thirty-one million, eight hundred eighty-five thousand, one hundred thirty-two".