9136868646 has 32 divisors (see below), whose sum is σ = 18469161216. Its totient is φ = 3013100000.

The previous prime is 9136868633. The next prime is 9136868677. The reversal of 9136868646 is 6468686319.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874111 + ... + 884501.

It is an arithmetic number, because the mean of its divisors is an integer number (577161288).

Almost surely, 2^9136868646 is an apocalyptic number.

9136868646 is an abundant number, since it is smaller than the sum of its proper divisors (9332292570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9136868646 is a wasteful number, since it uses less digits than its factorization.

9136868646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948.

The product of its digits is 8957952, while the sum is 57.

The square root of 9136868646 is about 95586.9690177484. The cubic root of 9136868646 is about 2090.5751983212.

The spelling of 9136868646 in words is "nine billion, one hundred thirty-six million, eight hundred sixty-eight thousand, six hundred forty-six".