33723980838 has 24 divisors (see below), whose sum is σ = 74850788376. Its totient is φ = 10967148000.

The previous prime is 33723980803. The next prime is 33723980861. The reversal of 33723980838 is 83808932733.

It is a happy number.

It is a super-4 number, since 4×33723980838⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22847488 + ... + 22848963.

It is an arithmetic number, because the mean of its divisors is an integer number (3118782849).

Almost surely, 2^33723980838 is an apocalyptic number.

33723980838 is an abundant number, since it is smaller than the sum of its proper divisors (41126807538).

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

33723980838 is a wasteful number, since it uses less digits than its factorization.

33723980838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45696500 (or 45696497 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 33723980838 in words is "thirty-three billion, seven hundred twenty-three million, nine hundred eighty thousand, eight hundred thirty-eight".