7139785911 has 16 divisors (see below), whose sum is σ = 9687699840. Its totient is φ = 4676499360.

The previous prime is 7139785901. The next prime is 7139785927. The reversal of 7139785911 is 1195879317.

It is not a de Polignac number, because 7139785911 - 2⁶ = 7139785847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139785901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34141 + ... + 124278.

It is an arithmetic number, because the mean of its divisors is an integer number (605481240).

Almost surely, 2^7139785911 is an apocalyptic number.

7139785911 is a deficient number, since it is larger than the sum of its proper divisors (2547913929).

7139785911 is a wasteful number, since it uses less digits than its factorization.

7139785911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158686.

The product of its digits is 476280, while the sum is 51.

The square root of 7139785911 is about 84497.2538666198. The cubic root of 7139785911 is about 1925.5807241909.

The spelling of 7139785911 in words is "seven billion, one hundred thirty-nine million, seven hundred eighty-five thousand, nine hundred eleven".