456873378653 has 4 divisors (see below), whose sum is σ = 459397541148. Its totient is φ = 454349216160.

The previous prime is 456873378623. The next prime is 456873378667. The reversal of 456873378653 is 356873378654.

It is a happy number.

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 156861939364 + 300011439289 = 396058^2 + 547733^2 .

It is a cyclic number.

It is not a de Polignac number, because 456873378653 - 2²² = 456869184349 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 456873378653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456873378623) 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, 1262080976 + ... + 1262081337.

It is an arithmetic number, because the mean of its divisors is an integer number (114849385287).

Almost surely, 2^456873378653 is an apocalyptic number.

It is an amenable number.

456873378653 is a deficient number, since it is larger than the sum of its proper divisors (2524162495).

456873378653 is a wasteful number, since it uses less digits than its factorization.

456873378653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524162494.

The product of its digits is 304819200, while the sum is 65.

Subtracting from 456873378653 its reverse (356873378654), we obtain a palindrome (99999999999).

The spelling of 456873378653 in words is "four hundred fifty-six billion, eight hundred seventy-three million, three hundred seventy-eight thousand, six hundred fifty-three".