7139889317 has 4 divisors (see below), whose sum is σ = 7788970176. Its totient is φ = 6490808460.

The previous prime is 7139889311. The next prime is 7139889389.

7139889317 is nontrivially palindromic in base 10.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7139889317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139889311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324540413 + ... + 324540434.

It is an arithmetic number, because the mean of its divisors is an integer number (1947242544).

Almost surely, 2^7139889317 is an apocalyptic number.

It is an amenable number.

7139889317 is a deficient number, since it is larger than the sum of its proper divisors (649080859).

7139889317 is a wasteful number, since it uses less digits than its factorization.

7139889317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649080858.

The product of its digits is 2286144, while the sum is 56.

The square root of 7139889317 is about 84497.8657541124. The cubic root of 7139889317 is about 1925.5900202511.

The spelling of 7139889317 in words is "seven billion, one hundred thirty-nine million, eight hundred eighty-nine thousand, three hundred seventeen".