27321471947 has 16 divisors (see below), whose sum is σ = 34529759232. Its totient is φ = 20997817920.

The previous prime is 27321471937. The next prime is 27321471977. The reversal of 27321471947 is 74917412372.

It is a cyclic number.

It is not a de Polignac number, because 27321471947 - 2⁸ = 27321471691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27321471937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424683 + ... + 2435924.

It is an arithmetic number, because the mean of its divisors is an integer number (2158109952).

Almost surely, 2^27321471947 is an apocalyptic number.

27321471947 is a deficient number, since it is larger than the sum of its proper divisors (7208287285).

27321471947 is a wasteful number, since it uses less digits than its factorization.

27321471947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860698.

The product of its digits is 592704, while the sum is 47.

The spelling of 27321471947 in words is "twenty-seven billion, three hundred twenty-one million, four hundred seventy-one thousand, nine hundred forty-seven".