628345883023623 has 24 divisors (see below), whose sum is σ = 911661092409600. Its totient is φ = 417028063545744.

The previous prime is 628345883023511. The next prime is 628345883023657. The reversal of 628345883023623 is 326320388543826.

628345883023623 is a `hidden beast` number, since 6 + 2 + 8 + 3 + 4 + 588 + 3 + 0 + 23 + 6 + 23 = 666.

It is not a de Polignac number, because 628345883023623 - 2¹⁸ = 628345882761479 is a prime.

It is a super-2 number, since 2×628345883023623² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628345883023673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27013408 + ... + 44569226.

It is an arithmetic number, because the mean of its divisors is an integer number (37985878850400).

Almost surely, 2^{628345883023623} is an apocalyptic number.

628345883023623 is a deficient number, since it is larger than the sum of its proper divisors (283315209385977).

628345883023623 is a wasteful number, since it uses less digits than its factorization.

628345883023623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17573571 (or 17573568 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 63.

The spelling of 628345883023623 in words is "six hundred twenty-eight trillion, three hundred forty-five billion, eight hundred eighty-three million, twenty-three thousand, six hundred twenty-three".