445511013538 has 8 divisors (see below), whose sum is σ = 674754545088. Its totient is φ = 220592831844.

The previous prime is 445511013491. The next prime is 445511013613. The reversal of 445511013538 is 835310115544.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 445511013538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081337206 + ... + 1081337617.

It is an arithmetic number, because the mean of its divisors is an integer number (84344318136).

Almost surely, 2^445511013538 is an apocalyptic number.

445511013538 is a deficient number, since it is larger than the sum of its proper divisors (229243531550).

445511013538 is a wasteful number, since it uses less digits than its factorization.

445511013538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162674928.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 445511013538 in words is "four hundred forty-five billion, five hundred eleven million, thirteen thousand, five hundred thirty-eight".