33440019031968 has 48 divisors (see below), whose sum is σ = 87969639816576. Its totient is φ = 11122598108160.

The previous prime is 33440019031961. The next prime is 33440019031981. The reversal of 33440019031968 is 86913091004433.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×33440019031968² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33440019031968.

It is not an unprimeable number, because it can be changed into a prime (33440019031961) 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, 376125673 + ... + 376214568.

It is an arithmetic number, because the mean of its divisors is an integer number (1832700829512).

Almost surely, 2^{33440019031968} is an apocalyptic number.

It is an amenable number.

33440019031968 is an abundant number, since it is smaller than the sum of its proper divisors (54529620784608).

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

33440019031968 is a wasteful number, since it uses less digits than its factorization.

33440019031968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752340717 (or 752340709 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 33440019031968 in words is "thirty-three trillion, four hundred forty billion, nineteen million, thirty-one thousand, nine hundred sixty-eight".