2874791561 has 8 divisors (see below), whose sum is σ = 3028058880. Its totient is φ = 2721720528.

The previous prime is 2874791509. The next prime is 2874791567. The reversal of 2874791561 is 1651974782.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2874791561 - 2²⁶ = 2807682697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2874791567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18506 + ... + 78051.

It is an arithmetic number, because the mean of its divisors is an integer number (378507360).

Almost surely, 2^2874791561 is an apocalyptic number.

It is an amenable number.

2874791561 is a deficient number, since it is larger than the sum of its proper divisors (153267319).

2874791561 is a wasteful number, since it uses less digits than its factorization.

2874791561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98143.

The product of its digits is 846720, while the sum is 50.

The square root of 2874791561 is about 53617.0827348896. The cubic root of 2874791561 is about 1421.8991254553.

The spelling of 2874791561 in words is "two billion, eight hundred seventy-four million, seven hundred ninety-one thousand, five hundred sixty-one".