85636976238 has 24 divisors (see below), whose sum is σ = 202414671576. Its totient is φ = 25950598800.

The previous prime is 85636976233. The next prime is 85636976251. The reversal of 85636976238 is 83267963658.

85636976238 is a `hidden beast` number, since 8 + 563 + 6 + 9 + 7 + 62 + 3 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85636976233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216254793 + ... + 216255188.

It is an arithmetic number, because the mean of its divisors is an integer number (8433944649).

Almost surely, 2^85636976238 is an apocalyptic number.

85636976238 is an abundant number, since it is smaller than the sum of its proper divisors (116777695338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85636976238 is a wasteful number, since it uses less digits than its factorization.

85636976238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432510000 (or 432509997 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 85636976238 in words is "eighty-five billion, six hundred thirty-six million, nine hundred seventy-six thousand, two hundred thirty-eight".