628751891976037 has 2 divisors, whose sum is σ = 628751891976038. Its totient is φ = 628751891976036.

The previous prime is 628751891975989. The next prime is 628751891976107. The reversal of 628751891976037 is 730679198157826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627708227459236 + 1043664516801 = 25054106^2 + 1021599^2 .

It is a cyclic number.

It is not a de Polignac number, because 628751891976037 - 2¹⁵ = 628751891943269 is a prime.

It is a super-2 number, since 2×628751891976037² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628751891976737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314375945988018 + 314375945988019.

It is an arithmetic number, because the mean of its divisors is an integer number (314375945988019).

Almost surely, 2^{628751891976037} is an apocalyptic number.

It is an amenable number.

628751891976037 is a deficient number, since it is larger than the sum of its proper divisors (1).

628751891976037 is an equidigital number, since it uses as much as digits as its factorization.

628751891976037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920360960, while the sum is 79.

The spelling of 628751891976037 in words is "six hundred twenty-eight trillion, seven hundred fifty-one billion, eight hundred ninety-one million, nine hundred seventy-six thousand, thirty-seven".