27431697532 has 12 divisors (see below), whose sum is σ = 48007796760. Its totient is φ = 13715184176.

The previous prime is 27431697509. The next prime is 27431697617. The reversal of 27431697532 is 23579613472.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66658 + ... + 243529.

It is an arithmetic number, because the mean of its divisors is an integer number (4000649730).

Almost surely, 2^27431697532 is an apocalyptic number.

It is an amenable number.

27431697532 is a deficient number, since it is larger than the sum of its proper divisors (20576099228).

27431697532 is a wasteful number, since it uses less digits than its factorization.

27431697532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332300 (or 332298 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 49.

The spelling of 27431697532 in words is "twenty-seven billion, four hundred thirty-one million, six hundred ninety-seven thousand, five hundred thirty-two".