7932142865 has 4 divisors (see below), whose sum is σ = 9518571444. Its totient is φ = 6345714288.

The previous prime is 7932142853. The next prime is 7932142873. The reversal of 7932142865 is 5682412397.

7932142865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5881049344 + 2051093521 = 76688^2 + 45289^2 .

It is a cyclic number.

It is not a de Polignac number, because 7932142865 - 2⁴ = 7932142849 is a prime.

It is a Duffinian 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, 793214282 + ... + 793214291.

It is an arithmetic number, because the mean of its divisors is an integer number (2379642861).

Almost surely, 2^7932142865 is an apocalyptic number.

It is an amenable number.

7932142865 is a deficient number, since it is larger than the sum of its proper divisors (1586428579).

7932142865 is a wasteful number, since it uses less digits than its factorization.

7932142865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586428578.

The product of its digits is 725760, while the sum is 47.

The square root of 7932142865 is about 89062.5783648778. The cubic root of 7932142865 is about 1994.3291748179.

The spelling of 7932142865 in words is "seven billion, nine hundred thirty-two million, one hundred forty-two thousand, eight hundred sixty-five".