624421516687 has 2 divisors, whose sum is σ = 624421516688. Its totient is φ = 624421516686.

The previous prime is 624421516627. The next prime is 624421516721. The reversal of 624421516687 is 786615124426.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 624421516687 - 2¹⁵ = 624421483919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624421516627) 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, 312210758343 + 312210758344.

It is an arithmetic number, because the mean of its divisors is an integer number (312210758344).

Almost surely, 2^624421516687 is an apocalyptic number.

624421516687 is a deficient number, since it is larger than the sum of its proper divisors (1).

624421516687 is an equidigital number, since it uses as much as digits as its factorization.

624421516687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 52.

The spelling of 624421516687 in words is "six hundred twenty-four billion, four hundred twenty-one million, five hundred sixteen thousand, six hundred eighty-seven".