624620623987 has 2 divisors, whose sum is σ = 624620623988. Its totient is φ = 624620623986.

The previous prime is 624620623981. The next prime is 624620624041. The reversal of 624620623987 is 789326026426.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 624620623987 - 2³⁹ = 74864810099 is a prime.

It is not a weakly prime, because it can be changed into another prime (624620623981) 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, 312310311993 + 312310311994.

It is an arithmetic number, because the mean of its divisors is an integer number (312310311994).

Almost surely, 2^624620623987 is an apocalyptic number.

624620623987 is a deficient number, since it is larger than the sum of its proper divisors (1).

624620623987 is an equidigital number, since it uses as much as digits as its factorization.

624620623987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 624620623987 in words is "six hundred twenty-four billion, six hundred twenty million, six hundred twenty-three thousand, nine hundred eighty-seven".