2451293857 has 4 divisors (see below), whose sum is σ = 2451539376. Its totient is φ = 2451048340.

The previous prime is 2451293851. The next prime is 2451293881. The reversal of 2451293857 is 7583921542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2451293857 - 2³ = 2451293849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451293851) 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, 107119 + ... + 127972.

It is an arithmetic number, because the mean of its divisors is an integer number (612884844).

Almost surely, 2^2451293857 is an apocalyptic number.

It is an amenable number.

2451293857 is a deficient number, since it is larger than the sum of its proper divisors (245519).

2451293857 is a wasteful number, since it uses less digits than its factorization.

2451293857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245518.

The product of its digits is 604800, while the sum is 46.

The square root of 2451293857 is about 49510.5428873488. The cubic root of 2451293857 is about 1348.3370208185.

The spelling of 2451293857 in words is "two billion, four hundred fifty-one million, two hundred ninety-three thousand, eight hundred fifty-seven".