63972312236 has 24 divisors (see below), whose sum is σ = 128174358816. Its totient is φ = 27367476480.

The previous prime is 63972312233. The next prime is 63972312317. The reversal of 63972312236 is 63221327936.

It is not an unprimeable number, because it can be changed into a prime (63972312233) 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, 2035325 + ... + 2066516.

It is an arithmetic number, because the mean of its divisors is an integer number (5340598284).

Almost surely, 2^63972312236 is an apocalyptic number.

It is an amenable number.

63972312236 is an abundant number, since it is smaller than the sum of its proper divisors (64202046580).

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

63972312236 is a wasteful number, since it uses less digits than its factorization.

63972312236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102409 (or 4102407 counting only the distinct ones).

The product of its digits is 489888, while the sum is 44.

The spelling of 63972312236 in words is "sixty-three billion, nine hundred seventy-two million, three hundred twelve thousand, two hundred thirty-six".