628967851157 has 2 divisors, whose sum is σ = 628967851158. Its totient is φ = 628967851156.

The previous prime is 628967851121. The next prime is 628967851189. The reversal of 628967851157 is 751158769826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329322185956 + 299645665201 = 573866^2 + 547399^2 .

It is a cyclic number.

It is not a de Polignac number, because 628967851157 - 2¹⁸ = 628967589013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 628967851093 and 628967851102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628967856157) 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, 314483925578 + 314483925579.

It is an arithmetic number, because the mean of its divisors is an integer number (314483925579).

Almost surely, 2^628967851157 is an apocalyptic number.

It is an amenable number.

628967851157 is a deficient number, since it is larger than the sum of its proper divisors (1).

628967851157 is an equidigital number, since it uses as much as digits as its factorization.

628967851157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 65.

The spelling of 628967851157 in words is "six hundred twenty-eight billion, nine hundred sixty-seven million, eight hundred fifty-one thousand, one hundred fifty-seven".