844498509156 has 81 divisors (see below), whose sum is σ = 2157081694131. Its totient is φ = 278579029104.

The previous prime is 844498509149. The next prime is 844498509161. The reversal of 844498509156 is 651905894448.

The square root of 844498509156 is 918966.

It is a perfect power (a square), and thus also a powerful number.

844498509156 is a `hidden beast` number, since 8 + 4 + 4 + 498 + 5 + 0 + 91 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 844498509093 and 844498509102.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 567920245 + ... + 567921731.

Almost surely, 2^844498509156 is an apocalyptic number.

844498509156 is the 918966-th square number.

It is an amenable number.

844498509156 is an abundant number, since it is smaller than the sum of its proper divisors (1312583184975).

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

844498509156 is a wasteful number, since it uses less digits than its factorization.

844498509156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 63.

The spelling of 844498509156 in words is "eight hundred forty-four billion, four hundred ninety-eight million, five hundred nine thousand, one hundred fifty-six".