27087343399 has 4 divisors (see below), whose sum is σ = 27269137800. Its totient is φ = 26905549000.

The previous prime is 27087343379. The next prime is 27087343429. The reversal of 27087343399 is 99334378072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27087343399 - 2¹⁵ = 27087310631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27087343379) 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, 90896977 + ... + 90897274.

It is an arithmetic number, because the mean of its divisors is an integer number (6817284450).

Almost surely, 2^27087343399 is an apocalyptic number.

27087343399 is a deficient number, since it is larger than the sum of its proper divisors (181794401).

27087343399 is a wasteful number, since it uses less digits than its factorization.

27087343399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181794400.

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 27087343399 in words is "twenty-seven billion, eighty-seven million, three hundred forty-three thousand, three hundred ninety-nine".