63986268936 has 64 divisors (see below), whose sum is σ = 163731784320. Its totient is φ = 20832284160.

The previous prime is 63986268923. The next prime is 63986268959.

63986268936 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×63986268936² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3166 + ... + 357746.

It is an arithmetic number, because the mean of its divisors is an integer number (2558309130).

Almost surely, 2^63986268936 is an apocalyptic number.

It is an amenable number.

63986268936 is an abundant number, since it is smaller than the sum of its proper divisors (99745515384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63986268936 is a wasteful number, since it uses less digits than its factorization.

63986268936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354766 (or 354762 counting only the distinct ones).

The product of its digits is 120932352, while the sum is 66.

The spelling of 63986268936 in words is "sixty-three billion, nine hundred eighty-six million, two hundred sixty-eight thousand, nine hundred thirty-six".