2291264327867 has 4 divisors (see below), whose sum is σ = 2291356286520. Its totient is φ = 2291172369216.

The previous prime is 2291264327719. The next prime is 2291264327899. The reversal of 2291264327867 is 7687234621922.

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

It is a cyclic number.

It is not a de Polignac number, because 2291264327867 - 2¹⁸ = 2291264065723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2291264327167) 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, 45941942 + ... + 45991787.

It is an arithmetic number, because the mean of its divisors is an integer number (572839071630).

Almost surely, 2^{2291264327867} is an apocalyptic number.

2291264327867 is a deficient number, since it is larger than the sum of its proper divisors (91958653).

2291264327867 is an equidigital number, since it uses as much as digits as its factorization.

2291264327867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91958652.

The product of its digits is 24385536, while the sum is 59.

The spelling of 2291264327867 in words is "two trillion, two hundred ninety-one billion, two hundred sixty-four million, three hundred twenty-seven thousand, eight hundred sixty-seven".