6712155839 has 4 divisors (see below), whose sum is σ = 6713832456. Its totient is φ = 6710479224.

The previous prime is 6712155811. The next prime is 6712155841. The reversal of 6712155839 is 9385512176.

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

It is a cyclic number.

It is not a de Polignac number, because 6712155839 - 2²⁸ = 6443720383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6712155793 and 6712155802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6712155899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832289 + ... + 840314.

It is an arithmetic number, because the mean of its divisors is an integer number (1678458114).

Almost surely, 2^6712155839 is an apocalyptic number.

6712155839 is a deficient number, since it is larger than the sum of its proper divisors (1676617).

6712155839 is a wasteful number, since it uses less digits than its factorization.

6712155839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676616.

The product of its digits is 453600, while the sum is 47.

The square root of 6712155839 is about 81927.7476743991. The cubic root of 6712155839 is about 1886.3430532482.

The spelling of 6712155839 in words is "six billion, seven hundred twelve million, one hundred fifty-five thousand, eight hundred thirty-nine".