83765870788 has 48 divisors (see below), whose sum is σ = 155930854464. Its totient is φ = 39237396480.

The previous prime is 83765870701. The next prime is 83765870789. The reversal of 83765870788 is 88707856738.

It is a super-2 number, since 2×83765870788² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83765870789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15169468 + ... + 15174988.

It is an arithmetic number, because the mean of its divisors is an integer number (3248559468).

Almost surely, 2^83765870788 is an apocalyptic number.

It is an amenable number.

83765870788 is a deficient number, since it is larger than the sum of its proper divisors (72164983676).

83765870788 is a wasteful number, since it uses less digits than its factorization.

83765870788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 67.

The spelling of 83765870788 in words is "eighty-three billion, seven hundred sixty-five million, eight hundred seventy thousand, seven hundred eighty-eight".