33740642718 has 64 divisors (see below), whose sum is σ = 78347174400. Its totient is φ = 10743036480.

The previous prime is 33740642711. The next prime is 33740642737. The reversal of 33740642718 is 81724604733.

33740642718 is a `hidden beast` number, since 3 + 374 + 0 + 6 + 4 + 271 + 8 = 666.

It is a super-2 number, since 2×33740642718² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33740642711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 899458 + ... + 936218.

It is an arithmetic number, because the mean of its divisors is an integer number (1224174600).

Almost surely, 2^33740642718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33740642718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39173587200).

33740642718 is an abundant number, since it is smaller than the sum of its proper divisors (44606531682).

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

33740642718 is a wasteful number, since it uses less digits than its factorization.

33740642718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37534 (or 37528 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 33740642718 in words is "thirty-three billion, seven hundred forty million, six hundred forty-two thousand, seven hundred eighteen".