8649534939 has 16 divisors (see below), whose sum is σ = 12142137600. Its totient is φ = 5461766496.

The previous prime is 8649534937. The next prime is 8649534989. The reversal of 8649534939 is 9394359468.

It is not a de Polignac number, because 8649534939 - 2¹ = 8649534937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8649534931) 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, 344877 + ... + 369105.

It is an arithmetic number, because the mean of its divisors is an integer number (758883600).

Almost surely, 2^8649534939 is an apocalyptic number.

8649534939 is a deficient number, since it is larger than the sum of its proper divisors (3492602661).

8649534939 is a wasteful number, since it uses less digits than its factorization.

8649534939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30514.

The product of its digits is 25194240, while the sum is 60.

The square root of 8649534939 is about 93002.8759716601. The cubic root of 8649534939 is about 2052.7256972265.

The spelling of 8649534939 in words is "eight billion, six hundred forty-nine million, five hundred thirty-four thousand, nine hundred thirty-nine".