63971424504 has 96 divisors (see below), whose sum is σ = 186677946000. Its totient is φ = 19673533440.

The previous prime is 63971424487. The next prime is 63971424553. The reversal of 63971424504 is 40542417936.

63971424504 is a `hidden beast` number, since 6 + 39 + 71 + 42 + 4 + 504 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 63971424504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1948384 + ... + 1980944.

Almost surely, 2^63971424504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63971424504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93338973000).

63971424504 is an abundant number, since it is smaller than the sum of its proper divisors (122706521496).

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

63971424504 is a wasteful number, since it uses less digits than its factorization.

63971424504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34685 (or 34678 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 63971424504 in words is "sixty-three billion, nine hundred seventy-one million, four hundred twenty-four thousand, five hundred four".