63631413636 has 48 divisors (see below), whose sum is σ = 169782071424. Its totient is φ = 18169871616.

The previous prime is 63631413617. The next prime is 63631413667.

63631413636 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

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, 72985 + ... + 364128.

It is an arithmetic number, because the mean of its divisors is an integer number (3537126488).

Almost surely, 2^63631413636 is an apocalyptic number.

It is an amenable number.

63631413636 is an abundant number, since it is smaller than the sum of its proper divisors (106150657788).

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

63631413636 is a wasteful number, since it uses less digits than its factorization.

63631413636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438860 (or 438858 counting only the distinct ones).

The product of its digits is 419904, while the sum is 42.

The spelling of 63631413636 in words is "sixty-three billion, six hundred thirty-one million, four hundred thirteen thousand, six hundred thirty-six".