7925243578 has 16 divisors (see below), whose sum is σ = 13637796480. Its totient is φ = 3383616816.

The previous prime is 7925243503. The next prime is 7925243681. The reversal of 7925243578 is 8753425297.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072533 + ... + 1079896.

It is an arithmetic number, because the mean of its divisors is an integer number (852362280).

Almost surely, 2^7925243578 is an apocalyptic number.

7925243578 is a deficient number, since it is larger than the sum of its proper divisors (5712552902).

7925243578 is a wasteful number, since it uses less digits than its factorization.

7925243578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152701.

The product of its digits is 4233600, while the sum is 52.

The square root of 7925243578 is about 89023.8371336576. The cubic root of 7925243578 is about 1993.7507922050.

The spelling of 7925243578 in words is "seven billion, nine hundred twenty-five million, two hundred forty-three thousand, five hundred seventy-eight".