401064520844 has 48 divisors (see below), whose sum is σ = 778764157920. Its totient is φ = 179547855360.

The previous prime is 401064520817. The next prime is 401064520861. The reversal of 401064520844 is 448025460104.

It is a junction number, because it is equal to n+sod(n) for n = 401064520798 and 401064520807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174854 + ... + 912525.

It is an arithmetic number, because the mean of its divisors is an integer number (16224253290).

Almost surely, 2^401064520844 is an apocalyptic number.

It is an amenable number.

401064520844 is a deficient number, since it is larger than the sum of its proper divisors (377699637076).

401064520844 is a wasteful number, since it uses less digits than its factorization.

401064520844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087610 (or 1087608 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

Adding to 401064520844 its reverse (448025460104), we get a palindrome (849089980948).

The spelling of 401064520844 in words is "four hundred one billion, sixty-four million, five hundred twenty thousand, eight hundred forty-four".