478748792227 has 4 divisors (see below), whose sum is σ = 478756112760. Its totient is φ = 478741471696.

The previous prime is 478748792191. The next prime is 478748792233. The reversal of 478748792227 is 722297847874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722297847874 = 2 ⋅361148923937.

It is a cyclic number.

It is not a de Polignac number, because 478748792227 - 2¹⁹ = 478748267939 is a prime.

It is a super-2 number, since 2×478748792227² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478748792267) 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, 3561277 + ... + 3693262.

It is an arithmetic number, because the mean of its divisors is an integer number (119689028190).

Almost surely, 2^478748792227 is an apocalyptic number.

478748792227 is a deficient number, since it is larger than the sum of its proper divisors (7320533).

478748792227 is an equidigital number, since it uses as much as digits as its factorization.

478748792227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320532.

The product of its digits is 177020928, while the sum is 67.

The spelling of 478748792227 in words is "four hundred seventy-eight billion, seven hundred forty-eight million, seven hundred ninety-two thousand, two hundred twenty-seven".