9986892649 has 4 divisors (see below), whose sum is σ = 9997904464. Its totient is φ = 9975880836.

The previous prime is 9986892623. The next prime is 9986892659. The reversal of 9986892649 is 9462986899.

9986892649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9986892649 - 2⁷ = 9986892521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9986892659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504547 + ... + 5506360.

It is an arithmetic number, because the mean of its divisors is an integer number (2499476116).

Almost surely, 2^9986892649 is an apocalyptic number.

It is an amenable number.

9986892649 is a deficient number, since it is larger than the sum of its proper divisors (11011815).

9986892649 is a wasteful number, since it uses less digits than its factorization.

9986892649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011814.

The product of its digits is 120932352, while the sum is 70.

The square root of 9986892649 is about 99934.4417555829. The cubic root of 9986892649 is about 2153.4929807452.

The spelling of 9986892649 in words is "nine billion, nine hundred eighty-six million, eight hundred ninety-two thousand, six hundred forty-nine".