12036621387 has 8 divisors (see below), whose sum is σ = 18341518336. Its totient is φ = 6878069352.

The previous prime is 12036621347. The next prime is 12036621403. The reversal of 12036621387 is 78312663021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12036621387 - 2¹⁴ = 12036605003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12036621347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286586203 + ... + 286586244.

It is an arithmetic number, because the mean of its divisors is an integer number (2292689792).

Almost surely, 2^12036621387 is an apocalyptic number.

12036621387 is a deficient number, since it is larger than the sum of its proper divisors (6304896949).

12036621387 is an equidigital number, since it uses as much as digits as its factorization.

12036621387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573172457.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 12036621387 in words is "twelve billion, thirty-six million, six hundred twenty-one thousand, three hundred eighty-seven".