27963352491 has 8 divisors (see below), whose sum is σ = 37297090704. Its totient is φ = 18635924640.

The previous prime is 27963352453. The next prime is 27963352511. The reversal of 27963352491 is 19425336972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27963352491 - 2⁹ = 27963351979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27963352421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567240 + ... + 1584981.

It is an arithmetic number, because the mean of its divisors is an integer number (4662136338).

Almost surely, 2^27963352491 is an apocalyptic number.

27963352491 is a deficient number, since it is larger than the sum of its proper divisors (9333738213).

27963352491 is a wasteful number, since it uses less digits than its factorization.

27963352491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155181.

The product of its digits is 2449440, while the sum is 51.

The spelling of 27963352491 in words is "twenty-seven billion, nine hundred sixty-three million, three hundred fifty-two thousand, four hundred ninety-one".