628571495657 has 16 divisors (see below), whose sum is σ = 723195389952. Its totient is φ = 535166298000.

The previous prime is 628571495641. The next prime is 628571495677. The reversal of 628571495657 is 756594175826.

It is a cyclic number.

It is not a de Polignac number, because 628571495657 - 2⁴ = 628571495641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 628571495593 and 628571495602.

It is not an unprimeable number, because it can be changed into a prime (628571495627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157418 + ... + 1132220.

It is an arithmetic number, because the mean of its divisors is an integer number (45199711872).

Almost surely, 2^628571495657 is an apocalyptic number.

It is an amenable number.

628571495657 is a deficient number, since it is larger than the sum of its proper divisors (94623894295).

628571495657 is a wasteful number, since it uses less digits than its factorization.

628571495657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975428.

The product of its digits is 127008000, while the sum is 65.

The spelling of 628571495657 in words is "six hundred twenty-eight billion, five hundred seventy-one million, four hundred ninety-five thousand, six hundred fifty-seven".