2759131921 has 16 divisors (see below), whose sum is σ = 3487638784. Its totient is φ = 2124045504.

The previous prime is 2759131901. The next prime is 2759131951. The reversal of 2759131921 is 1291319572.

It is not a de Polignac number, because 2759131921 - 2²¹ = 2757034769 is a prime.

It is a super-2 number, since 2×2759131921² = 15225617914962300482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2759131901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406365 + ... + 413098.

It is an arithmetic number, because the mean of its divisors is an integer number (217977424).

Almost surely, 2^2759131921 is an apocalyptic number.

It is an amenable number.

2759131921 is a deficient number, since it is larger than the sum of its proper divisors (728506863).

2759131921 is a wasteful number, since it uses less digits than its factorization.

2759131921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819520.

The product of its digits is 34020, while the sum is 40.

The square root of 2759131921 is about 52527.4396958390. The cubic root of 2759131921 is about 1402.5687399093.

The spelling of 2759131921 in words is "two billion, seven hundred fifty-nine million, one hundred thirty-one thousand, nine hundred twenty-one".