27862918361 has 4 divisors (see below), whose sum is σ = 27865807332. Its totient is φ = 27860029392.

The previous prime is 27862918337. The next prime is 27862918367. The reversal of 27862918361 is 16381926872.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19916265625 + 7946652736 = 141125^2 + 89144^2 .

It is a cyclic number.

It is not a de Polignac number, because 27862918361 - 2⁶ = 27862918297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27862918367) 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, 1429970 + ... + 1449323.

It is an arithmetic number, because the mean of its divisors is an integer number (6966451833).

Almost surely, 2^27862918361 is an apocalyptic number.

It is an amenable number.

27862918361 is a deficient number, since it is larger than the sum of its proper divisors (2888971).

27862918361 is an equidigital number, since it uses as much as digits as its factorization.

27862918361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888970.

The product of its digits is 1741824, while the sum is 53.

The spelling of 27862918361 in words is "twenty-seven billion, eight hundred sixty-two million, nine hundred eighteen thousand, three hundred sixty-one".