628410219257 has 2 divisors, whose sum is σ = 628410219258. Its totient is φ = 628410219256.

The previous prime is 628410219233. The next prime is 628410219271. The reversal of 628410219257 is 752912014826.

628410219257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628335240976 + 74978281 = 792676^2 + 8659^2 .

It is a cyclic number.

It is not a de Polignac number, because 628410219257 - 2⁶ = 628410219193 is a prime.

It is not a weakly prime, because it can be changed into another prime (628410219287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314205109628 + 314205109629.

It is an arithmetic number, because the mean of its divisors is an integer number (314205109629).

Almost surely, 2^628410219257 is an apocalyptic number.

It is an amenable number.

628410219257 is a deficient number, since it is larger than the sum of its proper divisors (1).

628410219257 is an equidigital number, since it uses as much as digits as its factorization.

628410219257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 628410219257 in words is "six hundred twenty-eight billion, four hundred ten million, two hundred nineteen thousand, two hundred fifty-seven".