628116254957 has 2 divisors, whose sum is σ = 628116254958. Its totient is φ = 628116254956.

The previous prime is 628116254923. The next prime is 628116255047. The reversal of 628116254957 is 759452611826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625192257481 + 2923997476 = 790691^2 + 54074^2 .

It is a cyclic number.

It is not a de Polignac number, because 628116254957 - 2²⁴ = 628099477741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628116254917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314058127478 + 314058127479.

It is an arithmetic number, because the mean of its divisors is an integer number (314058127479).

Almost surely, 2^628116254957 is an apocalyptic number.

It is an amenable number.

628116254957 is a deficient number, since it is larger than the sum of its proper divisors (1).

628116254957 is an equidigital number, since it uses as much as digits as its factorization.

628116254957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 56.

The spelling of 628116254957 in words is "six hundred twenty-eight billion, one hundred sixteen million, two hundred fifty-four thousand, nine hundred fifty-seven".