860442864444 has 36 divisors (see below), whose sum is σ = 2177638425144. Its totient is φ = 286467465312.

The previous prime is 860442864427. The next prime is 860442864467. The reversal of 860442864444 is 444468244068.

860442864444 is a `hidden beast` number, since 8 + 604 + 4 + 28 + 6 + 4 + 4 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14420767 + ... + 14480310.

It is an arithmetic number, because the mean of its divisors is an integer number (60489956254).

Almost surely, 2^860442864444 is an apocalyptic number.

It is an amenable number.

860442864444 is an abundant number, since it is smaller than the sum of its proper divisors (1317195560700).

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

860442864444 is a wasteful number, since it uses less digits than its factorization.

860442864444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28901914 (or 28901909 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 54.

The spelling of 860442864444 in words is "eight hundred sixty billion, four hundred forty-two million, eight hundred sixty-four thousand, four hundred forty-four".