2751161557731 has 8 divisors (see below), whose sum is σ = 3668238244944. Its totient is φ = 1834096287840.

The previous prime is 2751161557693. The next prime is 2751161557733. The reversal of 2751161557731 is 1377551611572.

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

It is a de Polignac number, because none of the positive numbers 2^k-2751161557731 is a prime.

It is a super-2 number, since 2×2751161557731² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2751161557733) 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, 2275300 + ... + 3267921.

It is an arithmetic number, because the mean of its divisors is an integer number (458529780618).

Almost surely, 2^{2751161557731} is an apocalyptic number.

2751161557731 is a deficient number, since it is larger than the sum of its proper divisors (917076687213).

2751161557731 is a wasteful number, since it uses less digits than its factorization.

2751161557731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5708661.

The product of its digits is 1543500, while the sum is 51.

The spelling of 2751161557731 in words is "two trillion, seven hundred fifty-one billion, one hundred sixty-one million, five hundred fifty-seven thousand, seven hundred thirty-one".