63512604378 has 24 divisors (see below), whose sum is σ = 140207072148. Its totient is φ = 20771417472.

The previous prime is 63512604313. The next prime is 63512604437. The reversal of 63512604378 is 87340621536.

63512604378 is a `hidden beast` number, since 6 + 3 + 5 + 1 + 2 + 604 + 37 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49032573489 + 14480030889 = 221433^2 + 120333^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33286575 + ... + 33288482.

Almost surely, 2^63512604378 is an apocalyptic number.

63512604378 is an abundant number, since it is smaller than the sum of its proper divisors (76694467770).

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

63512604378 is a wasteful number, since it uses less digits than its factorization.

63512604378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66575118 (or 66575115 counting only the distinct ones).

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

The spelling of 63512604378 in words is "sixty-three billion, five hundred twelve million, six hundred four thousand, three hundred seventy-eight".