85392678824 has 16 divisors (see below), whose sum is σ = 164016426420. Its totient is φ = 41654965120.

The previous prime is 85392678821. The next prime is 85392678827. The reversal of 85392678824 is 42887629358.

It is an interprime number because it is at equal distance from previous prime (85392678821) and next prime (85392678827).

It can be written as a sum of positive squares in 2 ways, for example, as 85332925924 + 59752900 = 292118^2 + 7730^2 .

It is not an unprimeable number, because it can be changed into a prime (85392678821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130171439 + ... + 130172094.

Almost surely, 2^85392678824 is an apocalyptic number.

It is an amenable number.

85392678824 is a deficient number, since it is larger than the sum of its proper divisors (78623747596).

85392678824 is a wasteful number, since it uses less digits than its factorization.

85392678824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260343580 (or 260343576 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 62.

The spelling of 85392678824 in words is "eighty-five billion, three hundred ninety-two million, six hundred seventy-eight thousand, eight hundred twenty-four".