626444968020 has 48 divisors (see below), whose sum is σ = 1830308780160. Its totient is φ = 159788861056.

The previous prime is 626444968003. The next prime is 626444968031. The reversal of 626444968020 is 20869444626.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 226971435 + ... + 226974194.

It is an arithmetic number, because the mean of its divisors is an integer number (38131432920).

Almost surely, 2^626444968020 is an apocalyptic number.

626444968020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

626444968020 is an abundant number, since it is smaller than the sum of its proper divisors (1203863812140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

626444968020 is a wasteful number, since it uses less digits than its factorization.

626444968020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453945664 (or 453945662 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 51.

The spelling of 626444968020 in words is "six hundred twenty-six billion, four hundred forty-four million, nine hundred sixty-eight thousand, twenty".