27938390435 has 4 divisors (see below), whose sum is σ = 33526068528. Its totient is φ = 22350712344.

The previous prime is 27938390399. The next prime is 27938390489. The reversal of 27938390435 is 53409383972.

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 27938390435 - 2¹⁰ = 27938389411 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793839039 + ... + 2793839048.

It is an arithmetic number, because the mean of its divisors is an integer number (8381517132).

Almost surely, 2^27938390435 is an apocalyptic number.

27938390435 is a deficient number, since it is larger than the sum of its proper divisors (5587678093).

27938390435 is an equidigital number, since it uses as much as digits as its factorization.

27938390435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587678092.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 27938390435 in words is "twenty-seven billion, nine hundred thirty-eight million, three hundred ninety thousand, four hundred thirty-five".