78596938431 has 24 divisors (see below), whose sum is σ = 123875746176. Its totient is φ = 47624498640.

The previous prime is 78596938429. The next prime is 78596938447. The reversal of 78596938431 is 13483969587.

78596938431 is a `hidden beast` number, since 7 + 8 + 596 + 9 + 3 + 8 + 4 + 31 = 666.

It is not a de Polignac number, because 78596938431 - 2¹ = 78596938429 is a prime.

It is a super-2 number, since 2×78596938431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78596938481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404436 + ... + 566358.

It is an arithmetic number, because the mean of its divisors is an integer number (5161489424).

Almost surely, 2^78596938431 is an apocalyptic number.

78596938431 is a deficient number, since it is larger than the sum of its proper divisors (45278807745).

78596938431 is a wasteful number, since it uses less digits than its factorization.

78596938431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166843 (or 166840 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 78596938431 in words is "seventy-eight billion, five hundred ninety-six million, nine hundred thirty-eight thousand, four hundred thirty-one".