64172558463 has 16 divisors (see below), whose sum is σ = 96994961280. Its totient is φ = 37412341344.

The previous prime is 64172558453. The next prime is 64172558467. The reversal of 64172558463 is 36485527146.

It is not a de Polignac number, because 64172558463 - 2⁸ = 64172558207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64172558467) 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, 43300581 + ... + 43302062.

It is an arithmetic number, because the mean of its divisors is an integer number (6062185080).

Almost surely, 2^64172558463 is an apocalyptic number.

64172558463 is a deficient number, since it is larger than the sum of its proper divisors (32822402817).

64172558463 is a wasteful number, since it uses less digits than its factorization.

64172558463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86602678.

The product of its digits is 4838400, while the sum is 51.

The spelling of 64172558463 in words is "sixty-four billion, one hundred seventy-two million, five hundred fifty-eight thousand, four hundred sixty-three".