2664133897 has 4 divisors (see below), whose sum is σ = 2676760336. Its totient is φ = 2651507460.

The previous prime is 2664133859. The next prime is 2664133939. The reversal of 2664133897 is 7983314662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2664133897 - 2¹⁹ = 2663609609 is a prime.

It is a super-2 number, since 2×2664133897² = 14195218842288813218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2664133897.

It is not an unprimeable number, because it can be changed into a prime (2664133847) 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, 6312903 + ... + 6313324.

It is an arithmetic number, because the mean of its divisors is an integer number (669190084).

Almost surely, 2^2664133897 is an apocalyptic number.

It is an amenable number.

2664133897 is a deficient number, since it is larger than the sum of its proper divisors (12626439).

2664133897 is a wasteful number, since it uses less digits than its factorization.

2664133897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12626438.

The product of its digits is 1306368, while the sum is 49.

The square root of 2664133897 is about 51615.2486867980. The cubic root of 2664133897 is about 1386.2833785314.

The spelling of 2664133897 in words is "two billion, six hundred sixty-four million, one hundred thirty-three thousand, eight hundred ninety-seven".