33025779930 has 192 divisors, whose sum is σ = 95155409664. Its totient is φ = 7285555200.

The previous prime is 33025779911. The next prime is 33025779937. The reversal of 33025779930 is 3997752033.

It is a self number, because there is not a number n which added to its sum of digits gives 33025779930.

It is not an unprimeable number, because it can be changed into a prime (33025779937) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3345562 + ... + 3355418.

It is an arithmetic number, because the mean of its divisors is an integer number (495601092).

Almost surely, 2^33025779930 is an apocalyptic number.

33025779930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33025779930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47577704832).

33025779930 is an abundant number, since it is smaller than the sum of its proper divisors (62129629734).

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

33025779930 is a wasteful number, since it uses less digits than its factorization.

33025779930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9973 (or 9962 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 48.

The spelling of 33025779930 in words is "thirty-three billion, twenty-five million, seven hundred seventy-nine thousand, nine hundred thirty".