445399438275 has 144 divisors (see below), whose sum is σ = 888516345600. Its totient is φ = 211468320000.

The previous prime is 445399438247. The next prime is 445399438279. The reversal of 445399438275 is 572834993544.

445399438275 is a `hidden beast` number, since 4 + 4 + 539 + 94 + 3 + 8 + 2 + 7 + 5 = 666.

It is not a de Polignac number, because 445399438275 - 2⁷ = 445399438147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445399438279) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 26174520 + ... + 26191530.

It is an arithmetic number, because the mean of its divisors is an integer number (6170252400).

Almost surely, 2^445399438275 is an apocalyptic number.

445399438275 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

445399438275 is a deficient number, since it is larger than the sum of its proper divisors (443116907325).

445399438275 is a wasteful number, since it uses less digits than its factorization.

445399438275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17258 (or 17250 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 63.

The spelling of 445399438275 in words is "four hundred forty-five billion, three hundred ninety-nine million, four hundred thirty-eight thousand, two hundred seventy-five".