63975715903831 has 16 divisors (see below), whose sum is σ = 64943212276800. Its totient is φ = 63015063568128.

The previous prime is 63975715903823. The next prime is 63975715903877. The reversal of 63975715903831 is 13830951757936.

63975715903831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63975715903831 - 2³ = 63975715903823 is a prime.

It is a super-2 number, since 2×63975715903831² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63975715943831) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 71160225 + ... + 72053653.

It is an arithmetic number, because the mean of its divisors is an integer number (4058950767300).

Almost surely, 2^{63975715903831} is an apocalyptic number.

63975715903831 is a deficient number, since it is larger than the sum of its proper divisors (967496372969).

63975715903831 is a wasteful number, since it uses less digits than its factorization.

63975715903831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897258.

The product of its (nonzero) digits is 128595600, while the sum is 67.

The spelling of 63975715903831 in words is "sixty-three trillion, nine hundred seventy-five billion, seven hundred fifteen million, nine hundred three thousand, eight hundred thirty-one".