12126899415 has 8 divisors (see below), whose sum is σ = 19403039088. Its totient is φ = 6467679680.

The previous prime is 12126899413. The next prime is 12126899423. The reversal of 12126899415 is 51499862121.

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

It is not a de Polignac number, because 12126899415 - 2¹ = 12126899413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126899413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404229966 + ... + 404229995.

It is an arithmetic number, because the mean of its divisors is an integer number (2425379886).

Almost surely, 2^12126899415 is an apocalyptic number.

12126899415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12126899415 is a deficient number, since it is larger than the sum of its proper divisors (7276139673).

12126899415 is an equidigital number, since it uses as much as digits as its factorization.

12126899415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808459969.

The product of its digits is 311040, while the sum is 48.

The spelling of 12126899415 in words is "twelve billion, one hundred twenty-six million, eight hundred ninety-nine thousand, four hundred fifteen".