2319070891 has 4 divisors (see below), whose sum is σ = 2319174000. Its totient is φ = 2318967784.

The previous prime is 2319070849. The next prime is 2319070903. The reversal of 2319070891 is 1980709132.

2319070891 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2319070891 - 2⁷ = 2319070763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2319070291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831 + ... + 68128.

It is an arithmetic number, because the mean of its divisors is an integer number (579793500).

Almost surely, 2^2319070891 is an apocalyptic number.

2319070891 is a deficient number, since it is larger than the sum of its proper divisors (103109).

2319070891 is an equidigital number, since it uses as much as digits as its factorization.

2319070891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103108.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 2319070891 is about 48156.7325615017. The cubic root of 2319070891 is about 1323.6444455807.

The spelling of 2319070891 in words is "two billion, three hundred nineteen million, seventy thousand, eight hundred ninety-one".