2456859641 has 4 divisors (see below), whose sum is σ = 2459788800. Its totient is φ = 2453930484.

The previous prime is 2456859637. The next prime is 2456859683. The reversal of 2456859641 is 1469586542.

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 2456859641 - 2² = 2456859637 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 2456859641.

It is not an unprimeable number, because it can be changed into a prime (2456859841) 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 3 ways as a sum of consecutive naturals, for example, 1463321 + ... + 1464998.

It is an arithmetic number, because the mean of its divisors is an integer number (614947200).

Almost surely, 2^2456859641 is an apocalyptic number.

It is an amenable number.

2456859641 is a deficient number, since it is larger than the sum of its proper divisors (2929159).

2456859641 is an equidigital number, since it uses as much as digits as its factorization.

2456859641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929158.

The product of its digits is 2073600, while the sum is 50.

The square root of 2456859641 is about 49566.7190865000. The cubic root of 2456859641 is about 1349.3567380765.

The spelling of 2456859641 in words is "two billion, four hundred fifty-six million, eight hundred fifty-nine thousand, six hundred forty-one".