27215074723 has 4 divisors (see below), whose sum is σ = 27216420688. Its totient is φ = 27213728760.

The previous prime is 27215074693. The next prime is 27215074741. The reversal of 27215074723 is 32747051272.

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 27215074723 - 2²⁵ = 27181520291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27215074123) 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, 642183 + ... + 683248.

It is an arithmetic number, because the mean of its divisors is an integer number (6804105172).

Almost surely, 2^27215074723 is an apocalyptic number.

27215074723 is a deficient number, since it is larger than the sum of its proper divisors (1345965).

27215074723 is a wasteful number, since it uses less digits than its factorization.

27215074723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345964.

The product of its (nonzero) digits is 164640, while the sum is 40.

The spelling of 27215074723 in words is "twenty-seven billion, two hundred fifteen million, seventy-four thousand, seven hundred twenty-three".