7957421082 has 24 divisors (see below), whose sum is σ = 18567316404. Its totient is φ = 2448437184.

The previous prime is 7957421077. The next prime is 7957421083. The reversal of 7957421082 is 2801247597.

It is a happy number.

7957421082 is a `hidden beast` number, since 79 + 574 + 2 + 1 + 0 + 8 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7860418281 + 97002801 = 88659^2 + 9849^2 .

It is not an unprimeable number, because it can be changed into a prime (7957421083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17002803 + ... + 17003270.

Almost surely, 2^7957421082 is an apocalyptic number.

7957421082 is an abundant number, since it is smaller than the sum of its proper divisors (10609895322).

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

7957421082 is a wasteful number, since it uses less digits than its factorization.

7957421082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34006094 (or 34006091 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 7957421082 is about 89204.3781548865. The cubic root of 7957421082 is about 1996.4454431387.

The spelling of 7957421082 in words is "seven billion, nine hundred fifty-seven million, four hundred twenty-one thousand, eighty-two".