27726870023 has 4 divisors (see below), whose sum is σ = 28250018568. Its totient is φ = 27203721480.

The previous prime is 27726869999. The next prime is 27726870131. The reversal of 27726870023 is 32007862772.

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 27726870023 - 2⁸ = 27726869767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27726879023) 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, 261574193 + ... + 261574298.

It is an arithmetic number, because the mean of its divisors is an integer number (7062504642).

Almost surely, 2^27726870023 is an apocalyptic number.

27726870023 is a deficient number, since it is larger than the sum of its proper divisors (523148545).

27726870023 is an equidigital number, since it uses as much as digits as its factorization.

27726870023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523148544.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 27726870023 in words is "twenty-seven billion, seven hundred twenty-six million, eight hundred seventy thousand, twenty-three".