27773332533 has 24 divisors (see below), whose sum is σ = 41236750776. Its totient is φ = 17999625600.

The previous prime is 27773332493. The next prime is 27773332541. The reversal of 27773332533 is 33523337772.

It can be written as a sum of positive squares in 4 ways, for example, as 21379411089 + 6393921444 = 146217^2 + 79962^2 .

It is not a de Polignac number, because 27773332533 - 2⁶ = 27773332469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27773332553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357963 + ... + 428583.

It is an arithmetic number, because the mean of its divisors is an integer number (1718197949).

Almost surely, 2^27773332533 is an apocalyptic number.

It is an amenable number.

27773332533 is a deficient number, since it is larger than the sum of its proper divisors (13463418243).

27773332533 is a wasteful number, since it uses less digits than its factorization.

27773332533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71845 (or 71842 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 45.

The spelling of 27773332533 in words is "twenty-seven billion, seven hundred seventy-three million, three hundred thirty-two thousand, five hundred thirty-three".