8780045844 has 24 divisors (see below), whose sum is σ = 21565025440. Its totient is φ = 2772645984.

The previous prime is 8780045809. The next prime is 8780045867. The reversal of 8780045844 is 4485400878.

It is a junction number, because it is equal to n+sod(n) for n = 8780045793 and 8780045802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19254259 + ... + 19254714.

Almost surely, 2^8780045844 is an apocalyptic number.

It is an amenable number.

8780045844 is an abundant number, since it is smaller than the sum of its proper divisors (12784979596).

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

8780045844 is a wasteful number, since it uses less digits than its factorization.

8780045844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38508999 (or 38508997 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 48.

The square root of 8780045844 is about 93701.8988281454. The cubic root of 8780045844 is about 2062.9985743151.

The spelling of 8780045844 in words is "eight billion, seven hundred eighty million, forty-five thousand, eight hundred forty-four".