83415639903 has 32 divisors (see below), whose sum is σ = 119782333440. Its totient is φ = 51469142400.

The previous prime is 83415639887. The next prime is 83415639913. The reversal of 83415639903 is 30993651438.

It is a happy number.

It is not a de Polignac number, because 83415639903 - 2⁴ = 83415639887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83415639913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1464253 + ... + 1520153.

It is an arithmetic number, because the mean of its divisors is an integer number (3743197920).

Almost surely, 2^83415639903 is an apocalyptic number.

83415639903 is a deficient number, since it is larger than the sum of its proper divisors (36366693537).

83415639903 is a wasteful number, since it uses less digits than its factorization.

83415639903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56527.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 83415639903 in words is "eighty-three billion, four hundred fifteen million, six hundred thirty-nine thousand, nine hundred three".