8091311854 has 4 divisors (see below), whose sum is σ = 12136967784. Its totient is φ = 4045655926.

The previous prime is 8091311843. The next prime is 8091311863. The reversal of 8091311854 is 4581131908.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022827962 + ... + 2022827965.

It is an arithmetic number, because the mean of its divisors is an integer number (3034241946).

Almost surely, 2^8091311854 is an apocalyptic number.

8091311854 is a deficient number, since it is larger than the sum of its proper divisors (4045655930).

8091311854 is a wasteful number, since it uses less digits than its factorization.

8091311854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045655929.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 8091311854 is about 89951.7195722239. The cubic root of 8091311854 is about 2007.5805524775.

The spelling of 8091311854 in words is "eight billion, ninety-one million, three hundred eleven thousand, eight hundred fifty-four".