2756328731 has 8 divisors (see below), whose sum is σ = 2969762880. Its totient is φ = 2543095872.

The previous prime is 2756328713. The next prime is 2756328739. The reversal of 2756328731 is 1378236572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2756328731 is a prime.

It is a super-2 number, since 2×2756328731² = 15194696146672140722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2756328739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21251 + ... + 77228.

It is an arithmetic number, because the mean of its divisors is an integer number (371220360).

Almost surely, 2^2756328731 is an apocalyptic number.

2756328731 is a deficient number, since it is larger than the sum of its proper divisors (213434149).

2756328731 is a wasteful number, since it uses less digits than its factorization.

2756328731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100645.

The product of its digits is 423360, while the sum is 44.

The square root of 2756328731 is about 52500.7498136931. The cubic root of 2756328731 is about 1402.0935905974.

The spelling of 2756328731 in words is "two billion, seven hundred fifty-six million, three hundred twenty-eight thousand, seven hundred thirty-one".