444444444261 has 16 divisors (see below), whose sum is σ = 658740990720. Its totient is φ = 296159146560.

The previous prime is 444444444209. The next prime is 444444444299. The reversal of 444444444261 is 162444444444.

It is not a de Polignac number, because 444444444261 - 2¹⁰ = 444444443237 is a prime.

It is a super-2 number, since 2×444444444261² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444444444461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3750285 + ... + 3866978.

It is an arithmetic number, because the mean of its divisors is an integer number (41171311920).

Almost surely, 2^444444444261 is an apocalyptic number.

It is an amenable number.

444444444261 is a deficient number, since it is larger than the sum of its proper divisors (214296546459).

444444444261 is a wasteful number, since it uses less digits than its factorization.

444444444261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7619433 (or 7619427 counting only the distinct ones).

The product of its digits is 3145728, while the sum is 45.

The spelling of 444444444261 in words is "four hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, two hundred sixty-one".