444623805880542 has 32 divisors (see below), whose sum is σ = 991809757128960. Its totient is φ = 147644407017720.

The previous prime is 444623805880489. The next prime is 444623805880543. The reversal of 444623805880542 is 245088508326444.

444623805880542 is a `hidden beast` number, since 4 + 4 + 4 + 6 + 2 + 3 + 8 + 0 + 5 + 8 + 80 + 542 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 444623805880542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444623805880543) 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, 15653548884 + ... + 15653577287.

It is an arithmetic number, because the mean of its divisors is an integer number (30994054910280).

Almost surely, 2^{444623805880542} is an apocalyptic number.

444623805880542 is an abundant number, since it is smaller than the sum of its proper divisors (547185951248418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444623805880542 is a wasteful number, since it uses less digits than its factorization.

444623805880542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31307126445 (or 31307126439 counting only the distinct ones).

The product of its (nonzero) digits is 235929600, while the sum is 63.

The spelling of 444623805880542 in words is "four hundred forty-four trillion, six hundred twenty-three billion, eight hundred five million, eight hundred eighty thousand, five hundred forty-two".