2540170771 has 4 divisors (see below), whose sum is σ = 2563475200. Its totient is φ = 2516866344.

The previous prime is 2540170757. The next prime is 2540170793. The reversal of 2540170771 is 1770710452.

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

It is a cyclic number.

It is not a de Polignac number, because 2540170771 - 2⁵ = 2540170739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540171771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11652051 + ... + 11652268.

It is an arithmetic number, because the mean of its divisors is an integer number (640868800).

Almost surely, 2^2540170771 is an apocalyptic number.

2540170771 is a deficient number, since it is larger than the sum of its proper divisors (23304429).

2540170771 is a wasteful number, since it uses less digits than its factorization.

2540170771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23304428.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 2540170771 is about 50400.1068550455. The cubic root of 2540170771 is about 1364.4395667004.

The spelling of 2540170771 in words is "two billion, five hundred forty million, one hundred seventy thousand, seven hundred seventy-one".