39459970431 has 72 divisors (see below), whose sum is σ = 70035703920. Its totient is φ = 21287556864.

The previous prime is 39459970411. The next prime is 39459970441. The reversal of 39459970431 is 13407995493.

It is a happy number.

39459970431 is a `hidden beast` number, since 3 + 9 + 4 + 599 + 7 + 0 + 43 + 1 = 666.

It is not a de Polignac number, because 39459970431 - 2⁶ = 39459970367 is a prime.

It is a super-2 number, since 2×39459970431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39459970411) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2447011 + ... + 2463083.

It is an arithmetic number, because the mean of its divisors is an integer number (972718110).

Almost surely, 2^39459970431 is an apocalyptic number.

39459970431 is a deficient number, since it is larger than the sum of its proper divisors (30575733489).

39459970431 is a wasteful number, since it uses less digits than its factorization.

39459970431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16405 (or 16395 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 39459970431 in words is "thirty-nine billion, four hundred fifty-nine million, nine hundred seventy thousand, four hundred thirty-one".