27321672123 has 12 divisors (see below), whose sum is σ = 39729502800. Its totient is φ = 18092202576.

The previous prime is 27321672061. The next prime is 27321672143. The reversal of 27321672123 is 32127612372.

It is not a de Polignac number, because 27321672123 - 2²² = 27317477819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27321672143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10185711 + ... + 10188392.

It is an arithmetic number, because the mean of its divisors is an integer number (3310791900).

Almost surely, 2^27321672123 is an apocalyptic number.

27321672123 is a deficient number, since it is larger than the sum of its proper divisors (12407830677).

27321672123 is a wasteful number, since it uses less digits than its factorization.

27321672123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20374258 (or 20374255 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The spelling of 27321672123 in words is "twenty-seven billion, three hundred twenty-one million, six hundred seventy-two thousand, one hundred twenty-three".