625921491696 has 40 divisors (see below), whose sum is σ = 1618078412544. Its totient is φ = 208496683200.

The previous prime is 625921491659. The next prime is 625921491697. The reversal of 625921491696 is 696194129526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625921491697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4423816 + ... + 4563111.

Almost surely, 2^625921491696 is an apocalyptic number.

It is an amenable number.

625921491696 is an abundant number, since it is smaller than the sum of its proper divisors (992156920848).

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

625921491696 is a wasteful number, since it uses less digits than its factorization.

625921491696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988389 (or 8988383 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 60.

The spelling of 625921491696 in words is "six hundred twenty-five billion, nine hundred twenty-one million, four hundred ninety-one thousand, six hundred ninety-six".