39697917088 has 12 divisors (see below), whose sum is σ = 78155274330. Its totient is φ = 19848958528.

The previous prime is 39697917043. The next prime is 39697917139. The reversal of 39697917088 is 88071979693.

It can be written as a sum of positive squares in only one way, i.e., 33017797264 + 6680119824 = 181708^2 + 81732^2 .

It is a super-2 number, since 2×39697917088² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620279923 + ... + 620279986.

Almost surely, 2^39697917088 is an apocalyptic number.

It is an amenable number.

39697917088 is a deficient number, since it is larger than the sum of its proper divisors (38457357242).

39697917088 is a wasteful number, since it uses less digits than its factorization.

39697917088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240559919 (or 1240559911 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 67.

The spelling of 39697917088 in words is "thirty-nine billion, six hundred ninety-seven million, nine hundred seventeen thousand, eighty-eight".