39668611272 has 16 divisors (see below), whose sum is σ = 99171528240. Its totient is φ = 13222870416.

The previous prime is 39668611247. The next prime is 39668611277. The reversal of 39668611272 is 27211686693.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (39668611277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826429378 + ... + 826429425.

It is an arithmetic number, because the mean of its divisors is an integer number (6198220515).

Almost surely, 2^39668611272 is an apocalyptic number.

It is an amenable number.

39668611272 is an abundant number, since it is smaller than the sum of its proper divisors (59502916968).

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

39668611272 is a wasteful number, since it uses less digits than its factorization.

39668611272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652858812 (or 1652858808 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The spelling of 39668611272 in words is "thirty-nine billion, six hundred sixty-eight million, six hundred eleven thousand, two hundred seventy-two".