63215873508 has 12 divisors (see below), whose sum is σ = 147503704880. Its totient is φ = 21071957832.

The previous prime is 63215873507. The next prime is 63215873527. The reversal of 63215873508 is 80537851236.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (63215873507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2633994718 + ... + 2633994741.

Almost surely, 2^63215873508 is an apocalyptic number.

It is an amenable number.

63215873508 is an abundant number, since it is smaller than the sum of its proper divisors (84287831372).

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

63215873508 is a wasteful number, since it uses less digits than its factorization.

63215873508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267989466 (or 5267989464 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 63215873508 in words is "sixty-three billion, two hundred fifteen million, eight hundred seventy-three thousand, five hundred eight".