7957438572 has 48 divisors (see below), whose sum is σ = 18765784800. Its totient is φ = 2624274432.

The previous prime is 7957438549. The next prime is 7957438597. The reversal of 7957438572 is 2758347597.

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, 450858 + ... + 468174.

It is an arithmetic number, because the mean of its divisors is an integer number (390953850).

Almost surely, 2^7957438572 is an apocalyptic number.

It is an amenable number.

7957438572 is an abundant number, since it is smaller than the sum of its proper divisors (10808346228).

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

7957438572 is a wasteful number, since it uses less digits than its factorization.

7957438572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17730 (or 17728 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 57.

The square root of 7957438572 is about 89204.4761881376. The cubic root of 7957438572 is about 1996.4469058322.

The spelling of 7957438572 in words is "seven billion, nine hundred fifty-seven million, four hundred thirty-eight thousand, five hundred seventy-two".