626977022401 has 2 divisors, whose sum is σ = 626977022402. Its totient is φ = 626977022400.

The previous prime is 626977022327. The next prime is 626977022437. The reversal of 626977022401 is 104220779626.

It is a happy number.

626977022401 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 can be written as a sum of positive squares in only one way, i.e., 625957880625 + 1019141776 = 791175^2 + 31924^2 .

It is a cyclic number.

It is not a de Polignac number, because 626977022401 - 2¹⁵ = 626976989633 is a prime.

It is not a weakly prime, because it can be changed into another prime (626977022101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313488511200 + 313488511201.

It is an arithmetic number, because the mean of its divisors is an integer number (313488511201).

Almost surely, 2^626977022401 is an apocalyptic number.

It is an amenable number.

626977022401 is a deficient number, since it is larger than the sum of its proper divisors (1).

626977022401 is an equidigital number, since it uses as much as digits as its factorization.

626977022401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 626977022401 in words is "six hundred twenty-six billion, nine hundred seventy-seven million, twenty-two thousand, four hundred one".