445444311642 has 32 divisors (see below), whose sum is σ = 975003554304. Its totient is φ = 134549089200.

The previous prime is 445444311623. The next prime is 445444311659. The reversal of 445444311642 is 246113444544.

It is a junction number, because it is equal to n+sod(n) for n = 445444311594 and 445444311603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10830208 + ... + 10871259.

It is an arithmetic number, because the mean of its divisors is an integer number (30468861072).

Almost surely, 2^445444311642 is an apocalyptic number.

445444311642 is an abundant number, since it is smaller than the sum of its proper divisors (529559242662).

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

445444311642 is a wasteful number, since it uses less digits than its factorization.

445444311642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21701794.

The product of its digits is 737280, while the sum is 42.

The spelling of 445444311642 in words is "four hundred forty-five billion, four hundred forty-four million, three hundred eleven thousand, six hundred forty-two".