12699259127 has 4 divisors (see below), whose sum is σ = 12888800376. Its totient is φ = 12509717880.

The previous prime is 12699259117. The next prime is 12699259211. The reversal of 12699259127 is 72195299621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12699259127 - 2¹² = 12699255031 is a prime.

It is a super-2 number, since 2×12699259127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12699259117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94770524 + ... + 94770657.

It is an arithmetic number, because the mean of its divisors is an integer number (3222200094).

Almost surely, 2^12699259127 is an apocalyptic number.

12699259127 is a deficient number, since it is larger than the sum of its proper divisors (189541249).

12699259127 is an equidigital number, since it uses as much as digits as its factorization.

12699259127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189541248.

The product of its digits is 1224720, while the sum is 53.

The spelling of 12699259127 in words is "twelve billion, six hundred ninety-nine million, two hundred fifty-nine thousand, one hundred twenty-seven".