2799042457 has 4 divisors (see below), whose sum is σ = 2800753956. Its totient is φ = 2797330960.

The previous prime is 2799042397. The next prime is 2799042487. The reversal of 2799042457 is 7542409972.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1505129616 + 1293912841 = 38796^2 + 35971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2799042457 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 2799042457.

It is not an unprimeable number, because it can be changed into a prime (2799042487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853294 + ... + 856567.

It is an arithmetic number, because the mean of its divisors is an integer number (700188489).

Almost surely, 2^2799042457 is an apocalyptic number.

It is an amenable number.

2799042457 is a deficient number, since it is larger than the sum of its proper divisors (1711499).

2799042457 is a wasteful number, since it uses less digits than its factorization.

2799042457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711498.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 2799042457 is about 52905.9775167230. The cubic root of 2799042457 is about 1409.2990592474.

The spelling of 2799042457 in words is "two billion, seven hundred ninety-nine million, forty-two thousand, four hundred fifty-seven".