33140642352 has 80 divisors (see below), whose sum is σ = 86642356320. Its totient is φ = 10914297856.

The previous prime is 33140642329. The next prime is 33140642357. The reversal of 33140642352 is 25324604133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (33140642357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8016478 + ... + 8020610.

It is an arithmetic number, because the mean of its divisors is an integer number (1083029454).

Almost surely, 2^33140642352 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 33140642352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43321178160).

33140642352 is an abundant number, since it is smaller than the sum of its proper divisors (53501713968).

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

33140642352 is a wasteful number, since it uses less digits than its factorization.

33140642352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110 (or 6104 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 33140642352 in words is "thirty-three billion, one hundred forty million, six hundred forty-two thousand, three hundred fifty-two".