33872785512 has 16 divisors (see below), whose sum is σ = 84681963840. Its totient is φ = 11290928496.

The previous prime is 33872785511. The next prime is 33872785543. The reversal of 33872785512 is 21558727833.

It is a super-2 number, since 2×33872785512² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33872785511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705683008 + ... + 705683055.

It is an arithmetic number, because the mean of its divisors is an integer number (5292622740).

Almost surely, 2^33872785512 is an apocalyptic number.

It is an amenable number.

33872785512 is an abundant number, since it is smaller than the sum of its proper divisors (50809178328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33872785512 is a wasteful number, since it uses less digits than its factorization.

33872785512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411366072 (or 1411366068 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 51.

The spelling of 33872785512 in words is "thirty-three billion, eight hundred seventy-two million, seven hundred eighty-five thousand, five hundred twelve".