33442773345 has 40 divisors (see below), whose sum is σ = 61343468736. Its totient is φ = 17421342624.

The previous prime is 33442773317. The next prime is 33442773347. The reversal of 33442773345 is 54337724433.

33442773345 is a `hidden beast` number, since 3 + 3 + 44 + 277 + 334 + 5 = 666.

It is not a de Polignac number, because 33442773345 - 2⁹ = 33442772833 is a prime.

It is a super-2 number, since 2×33442773345² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 33442773345.

It is not an unprimeable number, because it can be changed into a prime (33442773347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 942757 + ... + 977586.

Almost surely, 2^33442773345 is an apocalyptic number.

It is an amenable number.

33442773345 is a deficient number, since it is larger than the sum of its proper divisors (27900695391).

33442773345 is a wasteful number, since it uses less digits than its factorization.

33442773345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920403 (or 1920394 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 45.

The spelling of 33442773345 in words is "thirty-three billion, four hundred forty-two million, seven hundred seventy-three thousand, three hundred forty-five".