27770649833 has 4 divisors (see below), whose sum is σ = 27796629060. Its totient is φ = 27744670608.

The previous prime is 27770649821. The next prime is 27770649839. The reversal of 27770649833 is 33894607772.

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 12840742489 + 14929907344 = 113317^2 + 122188^2 .

It is a cyclic number.

It is not a de Polignac number, because 27770649833 - 2⁶ = 27770649769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27770649839) 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, 12988010 + ... + 12990147.

It is an arithmetic number, because the mean of its divisors is an integer number (6949157265).

Almost surely, 2^27770649833 is an apocalyptic number.

It is an amenable number.

27770649833 is a deficient number, since it is larger than the sum of its proper divisors (25979227).

27770649833 is a wasteful number, since it uses less digits than its factorization.

27770649833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25979226.

The product of its (nonzero) digits is 10668672, while the sum is 56.

The spelling of 27770649833 in words is "twenty-seven billion, seven hundred seventy million, six hundred forty-nine thousand, eight hundred thirty-three".