33872783011 has 4 divisors (see below), whose sum is σ = 33981699024. Its totient is φ = 33763867000.

The previous prime is 33872782991. The next prime is 33872783027. The reversal of 33872783011 is 11038727833.

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

It is a cyclic number.

It is not a de Polignac number, because 33872783011 - 2²¹ = 33870685859 is a prime.

It is a super-2 number, since 2×33872783011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33872783911) 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, 54457540 + ... + 54458161.

It is an arithmetic number, because the mean of its divisors is an integer number (8495424756).

Almost surely, 2^33872783011 is an apocalyptic number.

33872783011 is a deficient number, since it is larger than the sum of its proper divisors (108916013).

33872783011 is a wasteful number, since it uses less digits than its factorization.

33872783011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108916012.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 33872783011 in words is "thirty-three billion, eight hundred seventy-two million, seven hundred eighty-three thousand, eleven".