478495955193 has 4 divisors (see below), whose sum is σ = 637994606928. Its totient is φ = 318997303460.

The previous prime is 478495955191. The next prime is 478495955227. The reversal of 478495955193 is 391559594874.

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 478495955193 - 2¹ = 478495955191 is a prime.

It is a super-2 number, since 2×478495955193² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478495955191) 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, 79749325863 + ... + 79749325868.

It is an arithmetic number, because the mean of its divisors is an integer number (159498651732).

Almost surely, 2^478495955193 is an apocalyptic number.

It is an amenable number.

478495955193 is a deficient number, since it is larger than the sum of its proper divisors (159498651735).

478495955193 is a wasteful number, since it uses less digits than its factorization.

478495955193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159498651734.

The product of its digits is 244944000, while the sum is 69.

The spelling of 478495955193 in words is "four hundred seventy-eight billion, four hundred ninety-five million, nine hundred fifty-five thousand, one hundred ninety-three".