7807139013 has 4 divisors (see below), whose sum is σ = 10409518688. Its totient is φ = 5204759340.

The previous prime is 7807138987. The next prime is 7807139023. The reversal of 7807139013 is 3109317087.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7807139013 - 2⁶ = 7807138949 is a prime.

It is a super-2 number, since 2×7807139013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7807139023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301189833 + ... + 1301189838.

It is an arithmetic number, because the mean of its divisors is an integer number (2602379672).

Almost surely, 2^7807139013 is an apocalyptic number.

It is an amenable number.

7807139013 is a deficient number, since it is larger than the sum of its proper divisors (2602379675).

7807139013 is a wasteful number, since it uses less digits than its factorization.

7807139013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602379674.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 7807139013 is about 88358.0161219117. The cubic root of 7807139013 is about 1983.7973424966.

The spelling of 7807139013 in words is "seven billion, eight hundred seven million, one hundred thirty-nine thousand, thirteen".