456873378655 has 4 divisors (see below), whose sum is σ = 548248054392. Its totient is φ = 365498702920.

The previous prime is 456873378623. The next prime is 456873378667. The reversal of 456873378655 is 556873378654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556873378654 = 2 ⋅278436689327.

It is not a de Polignac number, because 456873378655 - 2⁵ = 456873378623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45687337861 + ... + 45687337870.

It is an arithmetic number, because the mean of its divisors is an integer number (137062013598).

Almost surely, 2^456873378655 is an apocalyptic number.

456873378655 is a deficient number, since it is larger than the sum of its proper divisors (91374675737).

456873378655 is an equidigital number, since it uses as much as digits as its factorization.

456873378655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91374675736.

The product of its digits is 508032000, while the sum is 67.

Subtracting 456873378655 from its reverse (556873378654), we obtain a palindrome (99999999999).

The spelling of 456873378655 in words is "four hundred fifty-six billion, eight hundred seventy-three million, three hundred seventy-eight thousand, six hundred fifty-five".