2764319891 has 2 divisors, whose sum is σ = 2764319892. Its totient is φ = 2764319890.

The previous prime is 2764319863. The next prime is 2764319903. The reversal of 2764319891 is 1989134672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2764319891 - 2²² = 2760125587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2764369891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382159945 + 1382159946.

It is an arithmetic number, because the mean of its divisors is an integer number (1382159946).

Almost surely, 2^2764319891 is an apocalyptic number.

2764319891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2764319891 is an equidigital number, since it uses as much as digits as its factorization.

2764319891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 2764319891 is about 52576.7999311483. The cubic root of 2764319891 is about 1403.4472684799.

The spelling of 2764319891 in words is "two billion, seven hundred sixty-four million, three hundred nineteen thousand, eight hundred ninety-one".