26996149663 has 4 divisors (see below), whose sum is σ = 30852742480. Its totient is φ = 23139556848.

The previous prime is 26996149657. The next prime is 26996149673. The reversal of 26996149663 is 36694169962.

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 26996149663 - 2³³ = 18406215071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26996149603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928296398 + ... + 1928296411.

It is an arithmetic number, because the mean of its divisors is an integer number (7713185620).

Almost surely, 2^26996149663 is an apocalyptic number.

26996149663 is a deficient number, since it is larger than the sum of its proper divisors (3856592817).

26996149663 is an equidigital number, since it uses as much as digits as its factorization.

26996149663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856592816.

The product of its digits is 22674816, while the sum is 61.

The spelling of 26996149663 in words is "twenty-six billion, nine hundred ninety-six million, one hundred forty-nine thousand, six hundred sixty-three".