845231859644 has 6 divisors (see below), whose sum is σ = 1479155754384. Its totient is φ = 422615929820.

The previous prime is 845231859617. The next prime is 845231859653. The reversal of 845231859644 is 446958132548.

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, 105653982452 + ... + 105653982459.

It is an arithmetic number, because the mean of its divisors is an integer number (246525959064).

Almost surely, 2^845231859644 is an apocalyptic number.

It is an amenable number.

845231859644 is a deficient number, since it is larger than the sum of its proper divisors (633923894740).

845231859644 is a wasteful number, since it uses less digits than its factorization.

845231859644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211307964915 (or 211307964913 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 59.

The spelling of 845231859644 in words is "eight hundred forty-five billion, two hundred thirty-one million, eight hundred fifty-nine thousand, six hundred forty-four".