444472938135 has 24 divisors (see below), whose sum is σ = 770616450864. Its totient is φ = 236991713280.

The previous prime is 444472938121. The next prime is 444472938137. The reversal of 444472938135 is 531839274444.

444472938135 is a `hidden beast` number, since 4 + 4 + 4 + 472 + 9 + 38 + 135 = 666.

It is not a de Polignac number, because 444472938135 - 2⁶ = 444472938071 is a prime.

It is a hoax number, since the sum of its digits (54) 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 (444472938137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1082346 + ... + 1435415.

It is an arithmetic number, because the mean of its divisors is an integer number (32109018786).

Almost surely, 2^444472938135 is an apocalyptic number.

444472938135 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

444472938135 is a deficient number, since it is larger than the sum of its proper divisors (326143512729).

444472938135 is a wasteful number, since it uses less digits than its factorization.

444472938135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521695 (or 2521692 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 444472938135 in words is "four hundred forty-four billion, four hundred seventy-two million, nine hundred thirty-eight thousand, one hundred thirty-five".