8154491799 has 8 divisors (see below), whose sum is σ = 10955653632. Its totient is φ = 5394828920.

The previous prime is 8154491789. The next prime is 8154491803. The reversal of 8154491799 is 9971944518.

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

It is a cyclic number.

It is not a de Polignac number, because 8154491799 - 2⁷ = 8154491671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8154491789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10374279 + ... + 10375064.

It is an arithmetic number, because the mean of its divisors is an integer number (1369456704).

Almost surely, 2^8154491799 is an apocalyptic number.

8154491799 is a deficient number, since it is larger than the sum of its proper divisors (2801161833).

8154491799 is a wasteful number, since it uses less digits than its factorization.

8154491799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20749477.

The product of its digits is 3265920, while the sum is 57.

The square root of 8154491799 is about 90302.2247732579. The cubic root of 8154491799 is about 2012.7923204044.

The spelling of 8154491799 in words is "eight billion, one hundred fifty-four million, four hundred ninety-one thousand, seven hundred ninety-nine".