39980684931 has 16 divisors (see below), whose sum is σ = 58807140480. Its totient is φ = 23958461120.

The previous prime is 39980684911. The next prime is 39980684951. The reversal of 39980684931 is 13948608993.

It is an interprime number because it is at equal distance from previous prime (39980684911) and next prime (39980684951).

It is not a de Polignac number, because 39980684931 - 2⁵ = 39980684899 is a prime.

It is a super-2 number, since 2×39980684931² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39980684911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6803445 + ... + 6809318.

It is an arithmetic number, because the mean of its divisors is an integer number (3675446280).

Almost surely, 2^39980684931 is an apocalyptic number.

39980684931 is a deficient number, since it is larger than the sum of its proper divisors (18826455549).

39980684931 is a wasteful number, since it uses less digits than its factorization.

39980684931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13612866.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 39980684931 in words is "thirty-nine billion, nine hundred eighty million, six hundred eighty-four thousand, nine hundred thirty-one".