444897778276 has 12 divisors (see below), whose sum is σ = 889795556608. Its totient is φ = 190670476392.

The previous prime is 444897778229. The next prime is 444897778301. The reversal of 444897778276 is 672877798444.

444897778276 is an admirable number.

It is a super-2 number, since 2×444897778276² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444897778199 and 444897778208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7944603156 + ... + 7944603211.

Almost surely, 2^444897778276 is an apocalyptic number.

It is an amenable number.

444897778276 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

444897778276 is a wasteful number, since it uses less digits than its factorization.

444897778276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15889206378 (or 15889206376 counting only the distinct ones).

The product of its digits is 1062125568, while the sum is 73.

The spelling of 444897778276 in words is "four hundred forty-four billion, eight hundred ninety-seven million, seven hundred seventy-eight thousand, two hundred seventy-six".