33868442540 has 48 divisors (see below), whose sum is σ = 74750135040. Its totient is φ = 12865110720.

The previous prime is 33868442539. The next prime is 33868442549. The reversal of 33868442540 is 4524486833.

It is a super-2 number, since 2×33868442540² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33868442549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200906 + ... + 328785.

It is an arithmetic number, because the mean of its divisors is an integer number (1557294480).

Almost surely, 2^33868442540 is an apocalyptic number.

It is an amenable number.

33868442540 is an abundant number, since it is smaller than the sum of its proper divisors (40881692500).

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

33868442540 is a wasteful number, since it uses less digits than its factorization.

33868442540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529862 (or 529860 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 47.

The spelling of 33868442540 in words is "thirty-three billion, eight hundred sixty-eight million, four hundred forty-two thousand, five hundred forty".