8639070945 has 16 divisors (see below), whose sum is σ = 13854446592. Its totient is φ = 4596860160.

The previous prime is 8639070941. The next prime is 8639071003. The reversal of 8639070945 is 5490709368.

It is not a de Polignac number, because 8639070945 - 2² = 8639070941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8639070941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658561 + ... + 671550.

It is an arithmetic number, because the mean of its divisors is an integer number (865902912).

Almost surely, 2^8639070945 is an apocalyptic number.

It is an amenable number.

8639070945 is a deficient number, since it is larger than the sum of its proper divisors (5215375647).

8639070945 is a wasteful number, since it uses less digits than its factorization.

8639070945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330552.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 8639070945 is about 92946.6026544273. The cubic root of 8639070945 is about 2051.8975842227.

The spelling of 8639070945 in words is "eight billion, six hundred thirty-nine million, seventy thousand, nine hundred forty-five".