12137261289 has 24 divisors (see below), whose sum is σ = 16415199360. Its totient is φ = 7976895552.

The previous prime is 12137261281. The next prime is 12137261303. The reversal of 12137261289 is 98216273121.

It is not a de Polignac number, because 12137261289 - 2³ = 12137261281 is a prime.

It is a super-2 number, since 2×12137261289² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12137261289.

It is not an unprimeable number, because it can be changed into a prime (12137261281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8161504 + ... + 8162990.

It is an arithmetic number, because the mean of its divisors is an integer number (683966640).

Almost surely, 2^12137261289 is an apocalyptic number.

It is an amenable number.

12137261289 is a deficient number, since it is larger than the sum of its proper divisors (4277938071).

12137261289 is a wasteful number, since it uses less digits than its factorization.

12137261289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937 (or 1828 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The spelling of 12137261289 in words is "twelve billion, one hundred thirty-seven million, two hundred sixty-one thousand, two hundred eighty-nine".