63112578657 has 32 divisors (see below), whose sum is σ = 90761333760. Its totient is φ = 38914835520.

The previous prime is 63112578649. The next prime is 63112578701. The reversal of 63112578657 is 75687521136.

63112578657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63112578657 - 2³ = 63112578649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63112578637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121258 + ... + 375404.

It is an arithmetic number, because the mean of its divisors is an integer number (2836291680).

Almost surely, 2^63112578657 is an apocalyptic number.

It is an amenable number.

63112578657 is a deficient number, since it is larger than the sum of its proper divisors (27648755103).

63112578657 is a wasteful number, since it uses less digits than its factorization.

63112578657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254293.

The product of its digits is 2116800, while the sum is 51.

The spelling of 63112578657 in words is "sixty-three billion, one hundred twelve million, five hundred seventy-eight thousand, six hundred fifty-seven".