78368062831 has 4 divisors (see below), whose sum is σ = 78373775664. Its totient is φ = 78362350000.

The previous prime is 78368062813. The next prime is 78368062873. The reversal of 78368062831 is 13826086387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13826086387 = 3407 ⋅4058141.

It is a cyclic number.

It is not a de Polignac number, because 78368062831 - 2²³ = 78359674223 is a prime.

It is a super-2 number, since 2×78368062831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78368062231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2835790 + ... + 2863291.

It is an arithmetic number, because the mean of its divisors is an integer number (19593443916).

Almost surely, 2^78368062831 is an apocalyptic number.

78368062831 is a deficient number, since it is larger than the sum of its proper divisors (5712833).

78368062831 is a wasteful number, since it uses less digits than its factorization.

78368062831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712832.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 78368062831 in words is "seventy-eight billion, three hundred sixty-eight million, sixty-two thousand, eight hundred thirty-one".