1856384475064 has 64 divisors (see below), whose sum is σ = 4187766412800. Its totient is φ = 753642071424.

The previous prime is 1856384475041. The next prime is 1856384475151. The reversal of 1856384475064 is 4605744836581.

It is a junction number, because it is equal to n+sod(n) for n = 1856384474993 and 1856384475011.

It is a congruent number.

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, 10824109 + ... + 10994275.

It is an arithmetic number, because the mean of its divisors is an integer number (65433850200).

Almost surely, 2^{1856384475064} is an apocalyptic number.

1856384475064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1856384475064 is an abundant number, since it is smaller than the sum of its proper divisors (2331381937736).

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

1856384475064 is a wasteful number, since it uses less digits than its factorization.

1856384475064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180452 (or 180448 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 61.

The spelling of 1856384475064 in words is "one trillion, eight hundred fifty-six billion, three hundred eighty-four million, four hundred seventy-five thousand, sixty-four".