444642045272505 has 24 divisors (see below), whose sum is σ = 804222134059968. Its totient is φ = 226831883964576.

The previous prime is 444642045272407. The next prime is 444642045272527. The reversal of 444642045272505 is 505272540246444.

444642045272505 is a `hidden beast` number, since 4 + 4 + 4 + 6 + 4 + 20 + 45 + 2 + 72 + 505 = 666.

It is not a de Polignac number, because 444642045272505 - 2⁹ = 444642045271993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214802919387 + ... + 214802921456.

It is an arithmetic number, because the mean of its divisors is an integer number (33509255585832).

Almost surely, 2^{444642045272505} is an apocalyptic number.

444642045272505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

444642045272505 is a deficient number, since it is larger than the sum of its proper divisors (359580088787463).

444642045272505 is a wasteful number, since it uses less digits than its factorization.

444642045272505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429605840877 (or 429605840874 counting only the distinct ones).

The product of its (nonzero) digits is 43008000, while the sum is 54.

The spelling of 444642045272505 in words is "four hundred forty-four trillion, six hundred forty-two billion, forty-five million, two hundred seventy-two thousand, five hundred five".