8745661305 has 48 divisors (see below), whose sum is σ = 16060996224. Its totient is φ = 4387207680.

The previous prime is 8745661261. The next prime is 8745661363. The reversal of 8745661305 is 5031665478.

8745661305 is a `hidden beast` number, since 8 + 74 + 566 + 13 + 0 + 5 = 666.

It is not a de Polignac number, because 8745661305 - 2⁸ = 8745661049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1793020 + ... + 1797890.

It is an arithmetic number, because the mean of its divisors is an integer number (334604088).

Almost surely, 2^8745661305 is an apocalyptic number.

8745661305 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8745661305 is a deficient number, since it is larger than the sum of its proper divisors (7315334919).

8745661305 is a wasteful number, since it uses less digits than its factorization.

8745661305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7246 (or 7243 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 8745661305 is about 93518.2404934994. The cubic root of 8745661305 is about 2060.3020031200.

The spelling of 8745661305 in words is "eight billion, seven hundred forty-five million, six hundred sixty-one thousand, three hundred five".