83639349963 has 24 divisors (see below), whose sum is σ = 130117019760. Its totient is φ = 51465873600.

The previous prime is 83639349961. The next prime is 83639349973. The reversal of 83639349963 is 36994393638.

83639349963 is a `hidden beast` number, since 83 + 6 + 3 + 9 + 3 + 499 + 63 = 666.

It is not a de Polignac number, because 83639349963 - 2¹ = 83639349961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83639349963.

It is not an unprimeable number, because it can be changed into a prime (83639349961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1743148 + ... + 1790486.

It is an arithmetic number, because the mean of its divisors is an integer number (5421542490).

Almost surely, 2^83639349963 is an apocalyptic number.

83639349963 is a deficient number, since it is larger than the sum of its proper divisors (46477669797).

83639349963 is a wasteful number, since it uses less digits than its factorization.

83639349963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62459 (or 62456 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 63.

The spelling of 83639349963 in words is "eighty-three billion, six hundred thirty-nine million, three hundred forty-nine thousand, nine hundred sixty-three".