27126691267 has 32 divisors (see below), whose sum is σ = 32070993920. Its totient is φ = 22719605760.

The previous prime is 27126691247. The next prime is 27126691271. The reversal of 27126691267 is 76219662172.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27126691267 - 2⁷ = 27126691139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27126691267.

It is not an unprimeable number, because it can be changed into a prime (27126691247) 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, 724468 + ... + 760990.

It is an arithmetic number, because the mean of its divisors is an integer number (1002218560).

Almost surely, 2^27126691267 is an apocalyptic number.

27126691267 is a deficient number, since it is larger than the sum of its proper divisors (4944302653).

27126691267 is a wasteful number, since it uses less digits than its factorization.

27126691267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36683.

The product of its digits is 762048, while the sum is 49.

The spelling of 27126691267 in words is "twenty-seven billion, one hundred twenty-six million, six hundred ninety-one thousand, two hundred sixty-seven".