626256430040 has 16 divisors (see below), whose sum is σ = 1409076967680. Its totient is φ = 250502572000.

The previous prime is 626256430039. The next prime is 626256430043. The reversal of 626256430040 is 40034652626.

It is a junction number, because it is equal to n+sod(n) for n = 626256429976 and 626256430003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626256430043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7828205336 + ... + 7828205415.

It is an arithmetic number, because the mean of its divisors is an integer number (88067310480).

Almost surely, 2^626256430040 is an apocalyptic number.

It is an amenable number.

626256430040 is an abundant number, since it is smaller than the sum of its proper divisors (782820537640).

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

626256430040 is a wasteful number, since it uses less digits than its factorization.

626256430040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15656410762 (or 15656410758 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 626256430040 in words is "six hundred twenty-six billion, two hundred fifty-six million, four hundred thirty thousand, forty".