39959998239 has 32 divisors (see below), whose sum is σ = 61749287424. Its totient is φ = 22514688000.

The previous prime is 39959998229. The next prime is 39959998249. The reversal of 39959998239 is 93289995993.

It is an interprime number because it is at equal distance from previous prime (39959998229) and next prime (39959998249).

It is not a de Polignac number, because 39959998239 - 2⁵ = 39959998207 is a prime.

It is a super-2 number, since 2×39959998239² (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 (39959998229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 414364 + ... + 501614.

It is an arithmetic number, because the mean of its divisors is an integer number (1929665232).

Almost surely, 2^39959998239 is an apocalyptic number.

39959998239 is a deficient number, since it is larger than the sum of its proper divisors (21789289185).

39959998239 is a wasteful number, since it uses less digits than its factorization.

39959998239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87567.

The product of its digits is 382637520, while the sum is 75.

The spelling of 39959998239 in words is "thirty-nine billion, nine hundred fifty-nine million, nine hundred ninety-eight thousand, two hundred thirty-nine".