83880738506 has 16 divisors (see below), whose sum is σ = 127142555904. Its totient is φ = 41500527024.

The previous prime is 83880738503. The next prime is 83880738521. The reversal of 83880738506 is 60583708838.

It is a super-2 number, since 2×83880738506² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83880738503) 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, 103631 + ... + 422493.

It is an arithmetic number, because the mean of its divisors is an integer number (7946409744).

Almost surely, 2^83880738506 is an apocalyptic number.

83880738506 is a deficient number, since it is larger than the sum of its proper divisors (43261817398).

83880738506 is a wasteful number, since it uses less digits than its factorization.

83880738506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320245.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 83880738506 in words is "eighty-three billion, eight hundred eighty million, seven hundred thirty-eight thousand, five hundred six".