76939525836 has 192 divisors, whose sum is σ = 206893209600. Its totient is φ = 24712501248.

The previous prime is 76939525801. The next prime is 76939525843. The reversal of 76939525836 is 63852593967.

76939525836 is a `hidden beast` number, since 76 + 9 + 3 + 9 + 525 + 8 + 36 = 666.

It is a super-2 number, since 2×76939525836² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151157950 + ... + 151158458.

It is an arithmetic number, because the mean of its divisors is an integer number (1077568800).

Almost surely, 2^76939525836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76939525836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103446604800).

76939525836 is an abundant number, since it is smaller than the sum of its proper divisors (129953683764).

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

76939525836 is a wasteful number, since it uses less digits than its factorization.

76939525836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 965 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 63.

The spelling of 76939525836 in words is "seventy-six billion, nine hundred thirty-nine million, five hundred twenty-five thousand, eight hundred thirty-six".