27321673533 has 32 divisors (see below), whose sum is σ = 46645370880. Its totient is φ = 13809476160.

The previous prime is 27321673529. The next prime is 27321673549. The reversal of 27321673533 is 33537612372.

It is not a de Polignac number, because 27321673533 - 2² = 27321673529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27321673583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1589773 + ... + 1606866.

It is an arithmetic number, because the mean of its divisors is an integer number (1457667840).

Almost surely, 2^27321673533 is an apocalyptic number.

It is an amenable number.

27321673533 is a deficient number, since it is larger than the sum of its proper divisors (19323697347).

27321673533 is a wasteful number, since it uses less digits than its factorization.

27321673533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196697.

The product of its digits is 476280, while the sum is 42.

The spelling of 27321673533 in words is "twenty-seven billion, three hundred twenty-one million, six hundred seventy-three thousand, five hundred thirty-three".