27791963432 has 16 divisors (see below), whose sum is σ = 52596941760. Its totient is φ = 13766112304.

The previous prime is 27791963431. The next prime is 27791963467. The reversal of 27791963432 is 23436919772.

It is not an unprimeable number, because it can be changed into a prime (27791963431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16232768 + ... + 16234479.

It is an arithmetic number, because the mean of its divisors is an integer number (3287308860).

Almost surely, 2^27791963432 is an apocalyptic number.

It is an amenable number.

27791963432 is a deficient number, since it is larger than the sum of its proper divisors (24804978328).

27791963432 is a wasteful number, since it uses less digits than its factorization.

27791963432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32467360 (or 32467356 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 53.

The spelling of 27791963432 in words is "twenty-seven billion, seven hundred ninety-one million, nine hundred sixty-three thousand, four hundred thirty-two".