628500690887 has 2 divisors, whose sum is σ = 628500690888. Its totient is φ = 628500690886.

The previous prime is 628500690877. The next prime is 628500690973. The reversal of 628500690887 is 788096005826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628500690887 - 2²² = 628496496583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628500690847) 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 as a sum of consecutive naturals, namely, 314250345443 + 314250345444.

It is an arithmetic number, because the mean of its divisors is an integer number (314250345444).

Almost surely, 2^628500690887 is an apocalyptic number.

628500690887 is a deficient number, since it is larger than the sum of its proper divisors (1).

628500690887 is an equidigital number, since it uses as much as digits as its factorization.

628500690887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 628500690887 in words is "six hundred twenty-eight billion, five hundred million, six hundred ninety thousand, eight hundred eighty-seven".