63464885457 has 16 divisors (see below), whose sum is σ = 86225731200. Its totient is φ = 41507153792.

The previous prime is 63464885453. The next prime is 63464885479. The reversal of 63464885457 is 75458846436.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63464885457 - 2² = 63464885453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63464885457.

It is not an unprimeable number, because it can be changed into a prime (63464885453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2144044 + ... + 2173442.

It is an arithmetic number, because the mean of its divisors is an integer number (5389108200).

Almost surely, 2^63464885457 is an apocalyptic number.

It is an amenable number.

63464885457 is a deficient number, since it is larger than the sum of its proper divisors (22760845743).

63464885457 is a wasteful number, since it uses less digits than its factorization.

63464885457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43032.

The product of its digits is 77414400, while the sum is 60.

The spelling of 63464885457 in words is "sixty-three billion, four hundred sixty-four million, eight hundred eighty-five thousand, four hundred fifty-seven".