27800242503 has 8 divisors (see below), whose sum is σ = 40436716416. Its totient is φ = 16848631800.

The previous prime is 27800242493. The next prime is 27800242507. The reversal of 27800242503 is 30524200872.

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

It is not a de Polignac number, because 27800242503 - 2⁹ = 27800241991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 842431591 = 27800242503 / (2 + 7 + 8 + 0 + 0 + 2 + 4 + 2 + 5 + 0 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27800242507) 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, 421215763 + ... + 421215828.

It is an arithmetic number, because the mean of its divisors is an integer number (5054589552).

Almost surely, 2^27800242503 is an apocalyptic number.

27800242503 is a deficient number, since it is larger than the sum of its proper divisors (12636473913).

27800242503 is a wasteful number, since it uses less digits than its factorization.

27800242503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842431605.

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 27800242503 in words is "twenty-seven billion, eight hundred million, two hundred forty-two thousand, five hundred three".