628256875897 has 8 divisors (see below), whose sum is σ = 755797745600. Its totient is φ = 510163478064.

The previous prime is 628256875819. The next prime is 628256875901. The reversal of 628256875897 is 798578652826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 628256875897 - 2⁷ = 628256875769 is a prime.

It is a super-2 number, since 2×628256875897² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628256879897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2361867822 + ... + 2361868087.

It is an arithmetic number, because the mean of its divisors is an integer number (94474718200).

Almost surely, 2^628256875897 is an apocalyptic number.

It is an amenable number.

628256875897 is a deficient number, since it is larger than the sum of its proper divisors (127540869703).

628256875897 is a wasteful number, since it uses less digits than its factorization.

628256875897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723735935.

The product of its digits is 812851200, while the sum is 73.

The spelling of 628256875897 in words is "six hundred twenty-eight billion, two hundred fifty-six million, eight hundred seventy-five thousand, eight hundred ninety-seven".