6744372839 has 4 divisors (see below), whose sum is σ = 6926653224. Its totient is φ = 6562092456.

The previous prime is 6744372809. The next prime is 6744372847. The reversal of 6744372839 is 9382734476.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6744372839 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 (6744372809) 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, 91140137 + ... + 91140210.

It is an arithmetic number, because the mean of its divisors is an integer number (1731663306).

Almost surely, 2^6744372839 is an apocalyptic number.

6744372839 is a deficient number, since it is larger than the sum of its proper divisors (182280385).

6744372839 is a wasteful number, since it uses less digits than its factorization.

6744372839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182280384.

The product of its digits is 6096384, while the sum is 53.

The square root of 6744372839 is about 82124.1306742421. The cubic root of 6744372839 is about 1889.3562600536.

The spelling of 6744372839 in words is "six billion, seven hundred forty-four million, three hundred seventy-two thousand, eight hundred thirty-nine".