7921601425888 has 96 divisors (see below), whose sum is σ = 16535916004608. Its totient is φ = 3722653440000.

The previous prime is 7921601425861. The next prime is 7921601425921. The reversal of 7921601425888 is 8885241061297.

It is a happy number.

7921601425888 is a modest number, since divided by 1425888 gives 792160 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1599997813 + ... + 1600002763.

It is an arithmetic number, because the mean of its divisors is an integer number (172249125048).

Almost surely, 2^{7921601425888} is an apocalyptic number.

It is an amenable number.

7921601425888 is an abundant number, since it is smaller than the sum of its proper divisors (8614314578720).

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

7921601425888 is a wasteful number, since it uses less digits than its factorization.

7921601425888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456 (or 8448 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 7921601425888 in words is "seven trillion, nine hundred twenty-one billion, six hundred one million, four hundred twenty-five thousand, eight hundred eighty-eight".