632544642787 has 2 divisors, whose sum is σ = 632544642788. Its totient is φ = 632544642786.

The previous prime is 632544642781. The next prime is 632544642857. The reversal of 632544642787 is 787246445236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 632544642787 - 2²³ = 632536254179 is a prime.

It is a super-2 number, since 2×632544642787² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (632544642781) 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 as a sum of consecutive naturals, namely, 316272321393 + 316272321394.

It is an arithmetic number, because the mean of its divisors is an integer number (316272321394).

Almost surely, 2^632544642787 is an apocalyptic number.

632544642787 is a deficient number, since it is larger than the sum of its proper divisors (1).

632544642787 is an equidigital number, since it uses as much as digits as its factorization.

632544642787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54190080, while the sum is 58.

The spelling of 632544642787 in words is "six hundred thirty-two billion, five hundred forty-four million, six hundred forty-two thousand, seven hundred eighty-seven".