626961798205 has 16 divisors (see below), whose sum is σ = 790657553664. Its totient is φ = 476664350400.

The previous prime is 626961798167. The next prime is 626961798241. The reversal of 626961798205 is 502897169626.

It is not a de Polignac number, because 626961798205 - 2⁷ = 626961798077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39398821 + ... + 39414730.

It is an arithmetic number, because the mean of its divisors is an integer number (49416097104).

Almost surely, 2^626961798205 is an apocalyptic number.

It is an amenable number.

626961798205 is a deficient number, since it is larger than the sum of its proper divisors (163695755459).

626961798205 is a wasteful number, since it uses less digits than its factorization.

626961798205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78813636.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 626961798205 in words is "six hundred twenty-six billion, nine hundred sixty-one million, seven hundred ninety-eight thousand, two hundred five".