8610696991 has 4 divisors (see below), whose sum is σ = 9273058312. Its totient is φ = 7948335672.

The previous prime is 8610696937. The next prime is 8610697009. The reversal of 8610696991 is 1996960168.

8610696991 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8610696991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8610696491) 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, 331180641 + ... + 331180666.

It is an arithmetic number, because the mean of its divisors is an integer number (2318264578).

Almost surely, 2^8610696991 is an apocalyptic number.

8610696991 is a deficient number, since it is larger than the sum of its proper divisors (662361321).

8610696991 is a wasteful number, since it uses less digits than its factorization.

8610696991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662361320.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 8610696991 is about 92793.8413419770. The cubic root of 8610696991 is about 2049.6487195833.

The spelling of 8610696991 in words is "eight billion, six hundred ten million, six hundred ninety-six thousand, nine hundred ninety-one".