2664137889 has 18 divisors (see below), whose sum is σ = 4476477330. Its totient is φ = 1522364256.

The previous prime is 2664137873. The next prime is 2664137891. The reversal of 2664137889 is 9887314662.

2664137889 is a `hidden beast` number, since 266 + 4 + 1 + 378 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2187152289 + 476985600 = 46767^2 + 21840^2 .

It is not a de Polignac number, because 2664137889 - 2⁴ = 2664137873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2664137849) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3020124 + ... + 3021005.

It is an arithmetic number, because the mean of its divisors is an integer number (248693185).

Almost surely, 2^2664137889 is an apocalyptic number.

It is an amenable number.

2664137889 is a deficient number, since it is larger than the sum of its proper divisors (1812339441).

2664137889 is a wasteful number, since it uses less digits than its factorization.

2664137889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6041149 (or 6041139 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 2664137889 is about 51615.2873575262. The cubic root of 2664137889 is about 1386.2840709441.

The spelling of 2664137889 in words is "two billion, six hundred sixty-four million, one hundred thirty-seven thousand, eight hundred eighty-nine".