478878400122 has 16 divisors (see below), whose sum is σ = 959045849280. Its totient is φ = 159411291872.

The previous prime is 478878400087. The next prime is 478878400123. The reversal of 478878400122 is 221004878874.

It is a happy number.

It is a super-2 number, since 2×478878400122² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478878400123) 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, 53705547 + ... + 53714462.

It is an arithmetic number, because the mean of its divisors is an integer number (59940365580).

Almost surely, 2^478878400122 is an apocalyptic number.

478878400122 is an abundant number, since it is smaller than the sum of its proper divisors (480167449158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478878400122 is a wasteful number, since it uses less digits than its factorization.

478878400122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107420757.

The product of its (nonzero) digits is 1605632, while the sum is 51.

The spelling of 478878400122 in words is "four hundred seventy-eight billion, eight hundred seventy-eight million, four hundred thousand, one hundred twenty-two".