63874447836 has 48 divisors (see below), whose sum is σ = 161124754560. Its totient is φ = 19625716800.

The previous prime is 63874447807. The next prime is 63874447841.

63874447836 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 63874447836.

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, 3777390 + ... + 3794261.

It is an arithmetic number, because the mean of its divisors is an integer number (3356765720).

Almost surely, 2^63874447836 is an apocalyptic number.

It is an amenable number.

63874447836 is an abundant number, since it is smaller than the sum of its proper divisors (97250306724).

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

63874447836 is a wasteful number, since it uses less digits than its factorization.

63874447836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571714 (or 7571712 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 60.

The spelling of 63874447836 in words is "sixty-three billion, eight hundred seventy-four million, four hundred forty-seven thousand, eight hundred thirty-six".