632891287457 has 16 divisors (see below), whose sum is σ = 743560698048. Its totient is φ = 531080383680.

The previous prime is 632891287451. The next prime is 632891287493. The reversal of 632891287457 is 754782198236.

It is not a de Polignac number, because 632891287457 - 2¹⁴ = 632891271073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 632891287457.

It is not an unprimeable number, because it can be changed into a prime (632891287451) 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, 6387698 + ... + 6486020.

It is an arithmetic number, because the mean of its divisors is an integer number (46472543628).

Almost surely, 2^632891287457 is an apocalyptic number.

It is an amenable number.

632891287457 is a deficient number, since it is larger than the sum of its proper divisors (110669410591).

632891287457 is a wasteful number, since it uses less digits than its factorization.

632891287457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143360.

The product of its digits is 40642560, while the sum is 62.

The spelling of 632891287457 in words is "six hundred thirty-two billion, eight hundred ninety-one million, two hundred eighty-seven thousand, four hundred fifty-seven".