626421764080 has 160 divisors (see below), whose sum is σ = 1754744832000. Its totient is φ = 203422510080.

The previous prime is 626421764063. The next prime is 626421764093. The reversal of 626421764080 is 80467124626.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 626421764080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432046 + ... + 1199794.

It is an arithmetic number, because the mean of its divisors is an integer number (10967155200).

Almost surely, 2^626421764080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626421764080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877372416000).

626421764080 is an abundant number, since it is smaller than the sum of its proper divisors (1128323067920).

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

626421764080 is a wasteful number, since it uses less digits than its factorization.

626421764080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767847 (or 767841 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 626421764080 in words is "six hundred twenty-six billion, four hundred twenty-one million, seven hundred sixty-four thousand, eighty".