7986539292 has 12 divisors (see below), whose sum is σ = 18635258376. Its totient is φ = 2662179760.

The previous prime is 7986539257. The next prime is 7986539311. The reversal of 7986539292 is 2929356897.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7986539292² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332772459 + ... + 332772482.

It is an arithmetic number, because the mean of its divisors is an integer number (1552938198).

Almost surely, 2^7986539292 is an apocalyptic number.

It is an amenable number.

7986539292 is an abundant number, since it is smaller than the sum of its proper divisors (10648719084).

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

7986539292 is a wasteful number, since it uses less digits than its factorization.

7986539292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665544948 (or 665544946 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 60.

The square root of 7986539292 is about 89367.4397753455. The cubic root of 7986539292 is about 1998.8776446103.

The spelling of 7986539292 in words is "seven billion, nine hundred eighty-six million, five hundred thirty-nine thousand, two hundred ninety-two".