626320351334401 has 4 divisors (see below), whose sum is σ = 638137716453972. Its totient is φ = 614502986214832.

The previous prime is 626320351334339. The next prime is 626320351334459. The reversal of 626320351334401 is 104433153023626.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 539287292953600 + 87033058380801 = 23222560^2 + 9329151^2 .

It is a cyclic number.

It is not a de Polignac number, because 626320351334401 - 2⁷ = 626320351334273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626320351034401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5908682559706 + ... + 5908682559811.

It is an arithmetic number, because the mean of its divisors is an integer number (159534429113493).

Almost surely, 2^{626320351334401} is an apocalyptic number.

It is an amenable number.

626320351334401 is a deficient number, since it is larger than the sum of its proper divisors (11817365119571).

626320351334401 is a wasteful number, since it uses less digits than its factorization.

626320351334401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11817365119570.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 626320351334401 in words is "six hundred twenty-six trillion, three hundred twenty billion, three hundred fifty-one million, three hundred thirty-four thousand, four hundred one".