628834623667 has 2 divisors, whose sum is σ = 628834623668. Its totient is φ = 628834623666.

The previous prime is 628834623623. The next prime is 628834623709. The reversal of 628834623667 is 766326438826.

628834623667 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 is a cyclic number.

It is not a de Polignac number, because 628834623667 - 2⁷ = 628834623539 is a prime.

It is not a weakly prime, because it can be changed into another prime (628834629667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314417311833 + 314417311834.

It is an arithmetic number, because the mean of its divisors is an integer number (314417311834).

Almost surely, 2^628834623667 is an apocalyptic number.

628834623667 is a deficient number, since it is larger than the sum of its proper divisors (1).

628834623667 is an equidigital number, since it uses as much as digits as its factorization.

628834623667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83607552, while the sum is 61.

The spelling of 628834623667 in words is "six hundred twenty-eight billion, eight hundred thirty-four million, six hundred twenty-three thousand, six hundred sixty-seven".