39881036097 has 64 divisors (see below), whose sum is σ = 68727347200. Its totient is φ = 22383915840.

The previous prime is 39881036053. The next prime is 39881036137. The reversal of 39881036097 is 79063018893.

39881036097 is a `hidden beast` number, since 398 + 8 + 103 + 60 + 97 = 666.

It is not a de Polignac number, because 39881036097 - 2²⁸ = 39612600641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39881036297) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9901398 + ... + 9905424.

It is an arithmetic number, because the mean of its divisors is an integer number (1073864800).

Almost surely, 2^39881036097 is an apocalyptic number.

It is an amenable number.

39881036097 is a deficient number, since it is larger than the sum of its proper divisors (28846311103).

39881036097 is a wasteful number, since it uses less digits than its factorization.

39881036097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963 (or 4957 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 39881036097 in words is "thirty-nine billion, eight hundred eighty-one million, thirty-six thousand, ninety-seven".