8501945705 has 16 divisors (see below), whose sum is σ = 11134943424. Its totient is φ = 6180386880.

The previous prime is 8501945687. The next prime is 8501945717. The reversal of 8501945705 is 5075491058.

It is a de Polignac number, because none of the positive numbers 2^k-8501945705 is a prime.

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, 88907 + ... + 157823.

It is an arithmetic number, because the mean of its divisors is an integer number (695933964).

Almost surely, 2^8501945705 is an apocalyptic number.

It is an amenable number.

8501945705 is a deficient number, since it is larger than the sum of its proper divisors (2632997719).

8501945705 is a wasteful number, since it uses less digits than its factorization.

8501945705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71176.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 8501945705 is about 92205.9960360496. The cubic root of 8501945705 is about 2040.9832586224.

The spelling of 8501945705 in words is "eight billion, five hundred one million, nine hundred forty-five thousand, seven hundred five".