444090922178 has 6 divisors (see below), whose sum is σ = 666137796921. Its totient is φ = 222044989872.

The previous prime is 444090922141. The next prime is 444090922181. The reversal of 444090922178 is 871229090444.

It can be written as a sum of positive squares in 2 ways, for example, as 376133210209 + 67957711969 = 613297^2 + 260687^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=471217.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 706826 + ... + 1178042.

Almost surely, 2^444090922178 is an apocalyptic number.

444090922178 is a deficient number, since it is larger than the sum of its proper divisors (222046874743).

444090922178 is an frugal number, since it uses more digits than its factorization.

444090922178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942436 (or 471219 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

Multiplying 444090922178 by its sum of digits (50), we get a square (22204546108900 = 4712170²).

The spelling of 444090922178 in words is "four hundred forty-four billion, ninety million, nine hundred twenty-two thousand, one hundred seventy-eight".