425491908710556 has 144 divisors (see below), whose sum is σ = 1028385880704000. Its totient is φ = 136919496591360.

The previous prime is 425491908710521. The next prime is 425491908710639. The reversal of 425491908710556 is 655017809194524.

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 47 ways as a sum of consecutive naturals, for example, 44234521515 + ... + 44234531133.

It is an arithmetic number, because the mean of its divisors is an integer number (7141568616000).

Almost surely, 2^{425491908710556} is an apocalyptic number.

It is an amenable number.

425491908710556 is an abundant number, since it is smaller than the sum of its proper divisors (602893971993444).

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

425491908710556 is a wasteful number, since it uses less digits than its factorization.

425491908710556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18680 (or 18647 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 66.

The spelling of 425491908710556 in words is "four hundred twenty-five trillion, four hundred ninety-one billion, nine hundred eight million, seven hundred ten thousand, five hundred fifty-six".