12126261459 has 32 divisors (see below), whose sum is σ = 17693673984. Its totient is φ = 7341903360.

The previous prime is 12126261451. The next prime is 12126261479. The reversal of 12126261459 is 95416262121.

It is not a de Polignac number, because 12126261459 - 2³ = 12126261451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12126261451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2566219 + ... + 2570939.

It is an arithmetic number, because the mean of its divisors is an integer number (552927312).

Almost surely, 2^12126261459 is an apocalyptic number.

12126261459 is a deficient number, since it is larger than the sum of its proper divisors (5567412525).

12126261459 is a wasteful number, since it uses less digits than its factorization.

12126261459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787.

The product of its digits is 51840, while the sum is 39.

The spelling of 12126261459 in words is "twelve billion, one hundred twenty-six million, two hundred sixty-one thousand, four hundred fifty-nine".