38133209872 has 10 divisors (see below), whose sum is σ = 73883094158. Its totient is φ = 19066604928.

The previous prime is 38133209837. The next prime is 38133209887. The reversal of 38133209872 is 27890233183.

It can be written as a sum of positive squares in only one way, i.e., 38128029696 + 5180176 = 195264^2 + 2276^2 .

It is a super-3 number, since 3×38133209872³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1191662793 + ... + 1191662824.

Almost surely, 2^38133209872 is an apocalyptic number.

It is an amenable number.

38133209872 is a deficient number, since it is larger than the sum of its proper divisors (35749884286).

38133209872 is a wasteful number, since it uses less digits than its factorization.

38133209872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383325625 (or 2383325619 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 38133209872 in words is "thirty-eight billion, one hundred thirty-three million, two hundred nine thousand, eight hundred seventy-two".