445855111864 has 8 divisors (see below), whose sum is σ = 835978334760. Its totient is φ = 222927555928.

The previous prime is 445855111837. The next prime is 445855111907. The reversal of 445855111864 is 468111558544.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27865944484 + ... + 27865944499.

It is an arithmetic number, because the mean of its divisors is an integer number (104497291845).

Almost surely, 2^445855111864 is an apocalyptic number.

It is an amenable number.

445855111864 is a deficient number, since it is larger than the sum of its proper divisors (390123222896).

445855111864 is a wasteful number, since it uses less digits than its factorization.

445855111864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55731888989 (or 55731888985 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 52.

The spelling of 445855111864 in words is "four hundred forty-five billion, eight hundred fifty-five million, one hundred eleven thousand, eight hundred sixty-four".