63815703412 has 12 divisors (see below), whose sum is σ = 112206759616. Its totient is φ = 31756629240.

The previous prime is 63815703379. The next prime is 63815703431. The reversal of 63815703412 is 21430751836.

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 3 ways as a sum of consecutive naturals, for example, 37804668 + ... + 37806355.

Almost surely, 2^63815703412 is an apocalyptic number.

It is an amenable number.

63815703412 is a deficient number, since it is larger than the sum of its proper divisors (48391056204).

63815703412 is a wasteful number, since it uses less digits than its factorization.

63815703412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75611238 (or 75611236 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 63815703412 in words is "sixty-three billion, eight hundred fifteen million, seven hundred three thousand, four hundred twelve".