27750375013 has 4 divisors (see below), whose sum is σ = 27860934528. Its totient is φ = 27639815500.

The previous prime is 27750375011. The next prime is 27750375043. The reversal of 27750375013 is 31057305772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27750375013 - 2¹ = 27750375011 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27750375011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55279381 + ... + 55279882.

It is an arithmetic number, because the mean of its divisors is an integer number (6965233632).

Almost surely, 2^27750375013 is an apocalyptic number.

It is an amenable number.

27750375013 is a deficient number, since it is larger than the sum of its proper divisors (110559515).

27750375013 is a wasteful number, since it uses less digits than its factorization.

27750375013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110559514.

The product of its (nonzero) digits is 154350, while the sum is 40.

The spelling of 27750375013 in words is "twenty-seven billion, seven hundred fifty million, three hundred seventy-five thousand, thirteen".