82775764136 has 32 divisors (see below), whose sum is σ = 167211639840. Its totient is φ = 38188594368.

The previous prime is 82775764133. The next prime is 82775764139. The reversal of 82775764136 is 63146757728.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82775764133) and next prime (82775764139).

It is not an unprimeable number, because it can be changed into a prime (82775764133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95255 + ... + 417881.

It is an arithmetic number, because the mean of its divisors is an integer number (5225363745).

Almost surely, 2^82775764136 is an apocalyptic number.

It is an amenable number.

82775764136 is an abundant number, since it is smaller than the sum of its proper divisors (84435875704).

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

82775764136 is a wasteful number, since it uses less digits than its factorization.

82775764136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325113 (or 325109 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 56.

The spelling of 82775764136 in words is "eighty-two billion, seven hundred seventy-five million, seven hundred sixty-four thousand, one hundred thirty-six".