478841923465 has 4 divisors (see below), whose sum is σ = 574610308164. Its totient is φ = 383073538768.

The previous prime is 478841923451. The next prime is 478841923477. The reversal of 478841923465 is 564329148874.

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 381810296464 + 97031627001 = 617908^2 + 311499^2 .

It is a cyclic number.

It is not a de Polignac number, because 478841923465 - 2⁵ = 478841923433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47884192342 + ... + 47884192351.

It is an arithmetic number, because the mean of its divisors is an integer number (143652577041).

Almost surely, 2^478841923465 is an apocalyptic number.

It is an amenable number.

478841923465 is a deficient number, since it is larger than the sum of its proper divisors (95768384699).

478841923465 is an equidigital number, since it uses as much as digits as its factorization.

478841923465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95768384698.

The product of its digits is 46448640, while the sum is 61.

The spelling of 478841923465 in words is "four hundred seventy-eight billion, eight hundred forty-one million, nine hundred twenty-three thousand, four hundred sixty-five".