626545620368472 has 256 divisors, whose sum is σ = 1913598032209920. Its totient is φ = 167046896332800.

The previous prime is 626545620368467. The next prime is 626545620368489. The reversal of 626545620368472 is 274863026545626.

It is a super-2 number, since 2×626545620368472² (a number of 30 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 5001858322 + ... + 5001983582.

It is an arithmetic number, because the mean of its divisors is an integer number (7474992313320).

Almost surely, 2^{626545620368472} 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 626545620368472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956799016104960).

626545620368472 is an abundant number, since it is smaller than the sum of its proper divisors (1287052411841448).

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

626545620368472 is a wasteful number, since it uses less digits than its factorization.

626545620368472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156914 (or 156910 counting only the distinct ones).

The product of its (nonzero) digits is 696729600, while the sum is 66.

The spelling of 626545620368472 in words is "six hundred twenty-six trillion, five hundred forty-five billion, six hundred twenty million, three hundred sixty-eight thousand, four hundred seventy-two".