27773868433 has 4 divisors (see below), whose sum is σ = 27776589120. Its totient is φ = 27771147748.

The previous prime is 27773868407. The next prime is 27773868457. The reversal of 27773868433 is 33486837772.

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 27773868433 - 2⁵ = 27773868401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27773868403) 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, 1344973 + ... + 1365466.

It is an arithmetic number, because the mean of its divisors is an integer number (6944147280).

Almost surely, 2^27773868433 is an apocalyptic number.

It is an amenable number.

27773868433 is a deficient number, since it is larger than the sum of its proper divisors (2720687).

27773868433 is a wasteful number, since it uses less digits than its factorization.

27773868433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720686.

The product of its digits is 28449792, while the sum is 58.

The spelling of 27773868433 in words is "twenty-seven billion, seven hundred seventy-three million, eight hundred sixty-eight thousand, four hundred thirty-three".