478979979874 has 16 divisors (see below), whose sum is σ = 783821435040. Its totient is φ = 217708168960.

The previous prime is 478979979871. The next prime is 478979979917.

It is a happy number.

478979979874 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×478979979874² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478979979871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642 + ... + 978754.

It is an arithmetic number, because the mean of its divisors is an integer number (48988839690).

Almost surely, 2^478979979874 is an apocalyptic number.

478979979874 is a deficient number, since it is larger than the sum of its proper divisors (304841455166).

478979979874 is a wasteful number, since it uses less digits than its factorization.

478979979874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000385.

The product of its digits is 16131032064, while the sum is 88.

The spelling of 478979979874 in words is "four hundred seventy-eight billion, nine hundred seventy-nine million, nine hundred seventy-nine thousand, eight hundred seventy-four".