8745217844 has 24 divisors (see below), whose sum is σ = 17271122400. Its totient is φ = 3838026080.

The previous prime is 8745217807. The next prime is 8745217853. The reversal of 8745217844 is 4487125478.

It is a junction number, because it is equal to n+sod(n) for n = 8745217792 and 8745217801.

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, 3425534 + ... + 3428085.

It is an arithmetic number, because the mean of its divisors is an integer number (719630100).

Almost surely, 2^8745217844 is an apocalyptic number.

It is an amenable number.

8745217844 is a deficient number, since it is larger than the sum of its proper divisors (8525904556).

8745217844 is a wasteful number, since it uses less digits than its factorization.

8745217844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853663 (or 6853661 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 50.

The square root of 8745217844 is about 93515.8694767899. The cubic root of 8745217844 is about 2060.2671790323.

The spelling of 8745217844 in words is "eight billion, seven hundred forty-five million, two hundred seventeen thousand, eight hundred forty-four".