26871423699 has 4 divisors (see below), whose sum is σ = 35828564936. Its totient is φ = 17914282464.

The previous prime is 26871423697. The next prime is 26871423703. The reversal of 26871423699 is 99632417862.

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

It is not a de Polignac number, because 26871423699 - 2¹ = 26871423697 is a prime.

It is a super-2 number, since 2×26871423699² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26871423697) 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, 4478570614 + ... + 4478570619.

It is an arithmetic number, because the mean of its divisors is an integer number (8957141234).

Almost surely, 2^26871423699 is an apocalyptic number.

26871423699 is a deficient number, since it is larger than the sum of its proper divisors (8957141237).

26871423699 is an equidigital number, since it uses as much as digits as its factorization.

26871423699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8957141236.

The product of its digits is 7838208, while the sum is 57.

The spelling of 26871423699 in words is "twenty-six billion, eight hundred seventy-one million, four hundred twenty-three thousand, six hundred ninety-nine".