478145915667 has 12 divisors (see below), whose sum is σ = 789320241840. Its totient is φ = 273226237488.

The previous prime is 478145915641. The next prime is 478145915683. The reversal of 478145915667 is 766519541874.

478145915667 is a `hidden beast` number, since 4 + 7 + 8 + 14 + 59 + 1 + 566 + 7 = 666.

It is not a de Polignac number, because 478145915667 - 2¹⁵ = 478145882899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 7589617709 = 478145915667 / (4 + 7 + 8 + 1 + 4 + 5 + 9 + 1 + 5 + 6 + 6 + 7).

It is not an unprimeable number, because it can be changed into a prime (478145915167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3794808792 + ... + 3794808917.

It is an arithmetic number, because the mean of its divisors is an integer number (65776686820).

Almost surely, 2^478145915667 is an apocalyptic number.

478145915667 is a deficient number, since it is larger than the sum of its proper divisors (311174326173).

478145915667 is a wasteful number, since it uses less digits than its factorization.

478145915667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7589617722 (or 7589617719 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

The spelling of 478145915667 in words is "four hundred seventy-eight billion, one hundred forty-five million, nine hundred fifteen thousand, six hundred sixty-seven".