628257360697 has 4 divisors (see below), whose sum is σ = 628402158160. Its totient is φ = 628112563236.

The previous prime is 628257360671. The next prime is 628257360707. The reversal of 628257360697 is 796063752826.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628257360697 - 2⁷ = 628257360569 is a prime.

It is a super-3 number, since 3×628257360697³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628257364697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72392223 + ... + 72400900.

It is an arithmetic number, because the mean of its divisors is an integer number (157100539540).

Almost surely, 2^628257360697 is an apocalyptic number.

It is an amenable number.

628257360697 is a deficient number, since it is larger than the sum of its proper divisors (144797463).

628257360697 is a wasteful number, since it uses less digits than its factorization.

628257360697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144797462.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 628257360697 in words is "six hundred twenty-eight billion, two hundred fifty-seven million, three hundred sixty thousand, six hundred ninety-seven".