26919314091 has 40 divisors (see below), whose sum is σ = 40948856784. Its totient is φ = 17618834880.

The previous prime is 26919314083. The next prime is 26919314129. The reversal of 26919314091 is 19041391962.

It is not a de Polignac number, because 26919314091 - 2³ = 26919314083 is a prime.

It is a super-2 number, since 2×26919314091² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26919314041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2776945 + ... + 2786621.

Almost surely, 2^26919314091 is an apocalyptic number.

26919314091 is a deficient number, since it is larger than the sum of its proper divisors (14029542693).

26919314091 is an equidigital number, since it uses as much as digits as its factorization.

26919314091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313 (or 10304 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The spelling of 26919314091 in words is "twenty-six billion, nine hundred nineteen million, three hundred fourteen thousand, ninety-one".