33855138732 has 24 divisors (see below), whose sum is σ = 79038518272. Its totient is φ = 11278875600.

The previous prime is 33855138697. The next prime is 33855138739. The reversal of 33855138732 is 23783155833.

It is a super-2 number, since 2×33855138732² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33855138739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748444 + ... + 792387.

Almost surely, 2^33855138732 is an apocalyptic number.

It is an amenable number.

33855138732 is an abundant number, since it is smaller than the sum of its proper divisors (45183379540).

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

33855138732 is a wasteful number, since it uses less digits than its factorization.

33855138732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542669 (or 1542667 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The spelling of 33855138732 in words is "thirty-three billion, eight hundred fifty-five million, one hundred thirty-eight thousand, seven hundred thirty-two".