626474255940 has 1152 divisors, whose sum is σ = 2402606707200. Its totient is φ = 134568345600.

The previous prime is 626474255903. The next prime is 626474255951. The reversal of 626474255940 is 49552474626.

626474255940 is a `hidden beast` number, since 6 + 2 + 6 + 4 + 7 + 42 + 5 + 594 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 383 ways as a sum of consecutive naturals, for example, 1562279740 + ... + 1562280140.

It is an arithmetic number, because the mean of its divisors is an integer number (2085596100).

Almost surely, 2^626474255940 is an apocalyptic number.

626474255940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626474255940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201303353600).

626474255940 is an abundant number, since it is smaller than the sum of its proper divisors (1776132451260).

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

626474255940 is a wasteful number, since it uses less digits than its factorization.

626474255940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 626474255940 in words is "six hundred twenty-six billion, four hundred seventy-four million, two hundred fifty-five thousand, nine hundred forty".