33403406712 has 128 divisors (see below), whose sum is σ = 92756966400. Its totient is φ = 9957523968.

The previous prime is 33403406681. The next prime is 33403406731. The reversal of 33403406712 is 21760430433.

It is a super-2 number, since 2×33403406712² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2752963 + ... + 2765069.

It is an arithmetic number, because the mean of its divisors is an integer number (724663800).

Almost surely, 2^33403406712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33403406712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46378483200).

33403406712 is an abundant number, since it is smaller than the sum of its proper divisors (59353559688).

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

33403406712 is a wasteful number, since it uses less digits than its factorization.

33403406712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12405 (or 12401 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

The spelling of 33403406712 in words is "thirty-three billion, four hundred three million, four hundred six thousand, seven hundred twelve".