97745138832 has 40 divisors (see below), whose sum is σ = 275463574560. Its totient is φ = 29619738880.

The previous prime is 97745138801. The next prime is 97745138851. The reversal of 97745138832 is 23883154779.

It is a super-2 number, since 2×97745138832² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92561157 + ... + 92562212.

It is an arithmetic number, because the mean of its divisors is an integer number (6886589364).

Almost surely, 2^97745138832 is an apocalyptic number.

It is an amenable number.

97745138832 is an abundant number, since it is smaller than the sum of its proper divisors (177718435728).

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

97745138832 is a wasteful number, since it uses less digits than its factorization.

97745138832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185123391 (or 185123385 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 57.

The spelling of 97745138832 in words is "ninety-seven billion, seven hundred forty-five million, one hundred thirty-eight thousand, eight hundred thirty-two".