83639093638 has 16 divisors (see below), whose sum is σ = 126769968864. Its totient is φ = 41382889600.

The previous prime is 83639093599. The next prime is 83639093669.

83639093638 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×83639093638² (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 7 ways as a sum of consecutive naturals, for example, 261006 + ... + 485182.

It is an arithmetic number, because the mean of its divisors is an integer number (7923123054).

Almost surely, 2^83639093638 is an apocalyptic number.

83639093638 is a deficient number, since it is larger than the sum of its proper divisors (43130875226).

83639093638 is a wasteful number, since it uses less digits than its factorization.

83639093638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226127.

The product of its (nonzero) digits is 15116544, while the sum is 58.

The spelling of 83639093638 in words is "eighty-three billion, six hundred thirty-nine million, ninety-three thousand, six hundred thirty-eight".