39139390669 has 12 divisors (see below), whose sum is σ = 40549300480. Its totient is φ = 37776952080.

The previous prime is 39139390663. The next prime is 39139390687. The reversal of 39139390669 is 96609393193.

It is not a de Polignac number, because 39139390669 - 2⁵ = 39139390637 is a prime.

It is a super-2 number, since 2×39139390669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39139390663) 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 11 ways as a sum of consecutive naturals, for example, 3300052 + ... + 3311890.

Almost surely, 2^39139390669 is an apocalyptic number.

It is an amenable number.

39139390669 is a deficient number, since it is larger than the sum of its proper divisors (1409909811).

39139390669 is a wasteful number, since it uses less digits than its factorization.

39139390669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828 (or 15799 counting only the distinct ones).

The product of its (nonzero) digits is 6377292, while the sum is 58.

The spelling of 39139390669 in words is "thirty-nine billion, one hundred thirty-nine million, three hundred ninety thousand, six hundred sixty-nine".