9164426864651 has 4 divisors (see below), whose sum is σ = 9164809201704. Its totient is φ = 9164044527600.

The previous prime is 9164426864641. The next prime is 9164426864711. The reversal of 9164426864651 is 1564686244619.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9164426864651 - 2²⁶ = 9164359755787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9164426864641) 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, 191132570 + ... + 191180511.

It is an arithmetic number, because the mean of its divisors is an integer number (2291202300426).

Almost surely, 2^{9164426864651} is an apocalyptic number.

9164426864651 is a deficient number, since it is larger than the sum of its proper divisors (382337053).

9164426864651 is a wasteful number, since it uses less digits than its factorization.

9164426864651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382337052.

The product of its digits is 59719680, while the sum is 62.

The spelling of 9164426864651 in words is "nine trillion, one hundred sixty-four billion, four hundred twenty-six million, eight hundred sixty-four thousand, six hundred fifty-one".