2664486091 has 4 divisors (see below), whose sum is σ = 2690354992. Its totient is φ = 2638617192.

The previous prime is 2664486049. The next prime is 2664486101. The reversal of 2664486091 is 1906844662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1906844662 = 2 ⋅953422331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2664486091 is a prime.

It is a super-2 number, since 2×2664486091² = 14198972258264920562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2664486001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12934296 + ... + 12934501.

It is an arithmetic number, because the mean of its divisors is an integer number (672588748).

Almost surely, 2^2664486091 is an apocalyptic number.

2664486091 is a deficient number, since it is larger than the sum of its proper divisors (25868901).

2664486091 is a wasteful number, since it uses less digits than its factorization.

2664486091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25868900.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 2664486091 is about 51618.6602983843. The cubic root of 2664486091 is about 1386.3444639465.

The spelling of 2664486091 in words is "two billion, six hundred sixty-four million, four hundred eighty-six thousand, ninety-one".