844866464860 has 48 divisors (see below), whose sum is σ = 1987823426400. Its totient is φ = 298920810240.

The previous prime is 844866464851. The next prime is 844866464881. The reversal of 844866464860 is 68464668448.

It is a super-2 number, since 2×844866464860² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 844866464792 and 844866464801.

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, 51887835 + ... + 51904114.

It is an arithmetic number, because the mean of its divisors is an integer number (41412988050).

Almost surely, 2^844866464860 is an apocalyptic number.

It is an amenable number.

844866464860 is an abundant number, since it is smaller than the sum of its proper divisors (1142956961540).

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

844866464860 is a wasteful number, since it uses less digits than its factorization.

844866464860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103792006 (or 103792004 counting only the distinct ones).

The product of its (nonzero) digits is 169869312, while the sum is 64.

The spelling of 844866464860 in words is "eight hundred forty-four billion, eight hundred sixty-six million, four hundred sixty-four thousand, eight hundred sixty".