78795618231 has 16 divisors (see below), whose sum is σ = 116062594560. Its totient is φ = 47150425920.

The previous prime is 78795618221. The next prime is 78795618233. The reversal of 78795618231 is 13281659787.

It is a happy number.

It is not a de Polignac number, because 78795618231 - 2¹⁰ = 78795617207 is a prime.

It is a super-2 number, since 2×78795618231² (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 (78795618233) 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, 15109710 + ... + 15114923.

It is an arithmetic number, because the mean of its divisors is an integer number (7253912160).

Almost surely, 2^78795618231 is an apocalyptic number.

78795618231 is a deficient number, since it is larger than the sum of its proper divisors (37266976329).

78795618231 is a wasteful number, since it uses less digits than its factorization.

78795618231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30224726.

The product of its digits is 5080320, while the sum is 57.

The spelling of 78795618231 in words is "seventy-eight billion, seven hundred ninety-five million, six hundred eighteen thousand, two hundred thirty-one".