83608680638 has 32 divisors (see below), whose sum is σ = 145949126400. Its totient is φ = 35178891264.

The previous prime is 83608680629. The next prime is 83608680671.

83608680638 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×83608680638² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569381 + ... + 701007.

It is an arithmetic number, because the mean of its divisors is an integer number (4560910200).

Almost surely, 2^83608680638 is an apocalyptic number.

83608680638 is a deficient number, since it is larger than the sum of its proper divisors (62340445762).

83608680638 is a wasteful number, since it uses less digits than its factorization.

83608680638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132464.

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 83608680638 in words is "eighty-three billion, six hundred eight million, six hundred eighty thousand, six hundred thirty-eight".