2730157291 has 16 divisors (see below), whose sum is σ = 2940456960. Its totient is φ = 2526724800.

The previous prime is 2730157289. The next prime is 2730157301. The reversal of 2730157291 is 1927510372.

It is a cyclic number.

It is not a de Polignac number, because 2730157291 - 2¹ = 2730157289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2730157291.

It is not an unprimeable number, because it can be changed into a prime (2730157231) 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, 534150 + ... + 539236.

It is an arithmetic number, because the mean of its divisors is an integer number (183778560).

Almost surely, 2^2730157291 is an apocalyptic number.

2730157291 is a deficient number, since it is larger than the sum of its proper divisors (210299669).

2730157291 is a wasteful number, since it uses less digits than its factorization.

2730157291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 2730157291 is about 52250.9070830354. The cubic root of 2730157291 is about 1397.6418278939.

The spelling of 2730157291 in words is "two billion, seven hundred thirty million, one hundred fifty-seven thousand, two hundred ninety-one".