7900880025440 has 48 divisors (see below), whose sum is σ = 18802076039712. Its totient is φ = 3137283738624.

The previous prime is 7900880025427. The next prime is 7900880025443. The reversal of 7900880025440 is 445200880097.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7900880025443) 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, 180198884 + ... + 180242723.

It is an arithmetic number, because the mean of its divisors is an integer number (391709917494).

Almost surely, 2^{7900880025440} is an apocalyptic number.

It is an amenable number.

7900880025440 is an abundant number, since it is smaller than the sum of its proper divisors (10901196014272).

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

7900880025440 is a wasteful number, since it uses less digits than its factorization.

7900880025440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360441759 (or 360441751 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 7900880025440 in words is "seven trillion, nine hundred billion, eight hundred eighty million, twenty-five thousand, four hundred forty".