63972188031 has 8 divisors (see below), whose sum is σ = 85298131840. Its totient is φ = 42647184792.

The previous prime is 63972188009. The next prime is 63972188069. The reversal of 63972188031 is 13088127936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63972188031 - 2⁶ = 63972187967 is a prime.

It is a super-2 number, since 2×63972188031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63972188131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57205 + ... + 362238.

It is an arithmetic number, because the mean of its divisors is an integer number (10662266480).

Almost surely, 2^63972188031 is an apocalyptic number.

63972188031 is a deficient number, since it is larger than the sum of its proper divisors (21325943809).

63972188031 is a wasteful number, since it uses less digits than its factorization.

63972188031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470285.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 63972188031 in words is "sixty-three billion, nine hundred seventy-two million, one hundred eighty-eight thousand, thirty-one".