8626494161 has 8 divisors (see below), whose sum is σ = 9136207080. Its totient is φ = 8117033728.

The previous prime is 8626494143. The next prime is 8626494197. The reversal of 8626494161 is 1614946268.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 314707600 + 8311786561 = 17740^2 + 91169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8626494161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8626494761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9635 + ... + 131703.

It is an arithmetic number, because the mean of its divisors is an integer number (1142025885).

Almost surely, 2^8626494161 is an apocalyptic number.

It is an amenable number.

8626494161 is a deficient number, since it is larger than the sum of its proper divisors (509712919).

8626494161 is a wasteful number, since it uses less digits than its factorization.

8626494161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126243.

The product of its digits is 497664, while the sum is 47.

The square root of 8626494161 is about 92878.9220490850. The cubic root of 8626494161 is about 2050.9013811990.

The spelling of 8626494161 in words is "eight billion, six hundred twenty-six million, four hundred ninety-four thousand, one hundred sixty-one".