33138709817193 has 8 divisors (see below), whose sum is σ = 49094384914400. Its totient is φ = 22092473211444.

The previous prime is 33138709817159. The next prime is 33138709817237. The reversal of 33138709817193 is 39171890783133.

33138709817193 is a `hidden beast` number, since 3 + 313 + 87 + 0 + 98 + 1 + 71 + 93 = 666.

It is not a de Polignac number, because 33138709817193 - 2¹⁰ = 33138709816169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33138709817193.

It is not an unprimeable number, because it can be changed into a prime (33138709817123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613679811403 + ... + 613679811456.

It is an arithmetic number, because the mean of its divisors is an integer number (6136798114300).

Almost surely, 2^{33138709817193} is an apocalyptic number.

It is an amenable number.

33138709817193 is a deficient number, since it is larger than the sum of its proper divisors (15955675097207).

33138709817193 is a wasteful number, since it uses less digits than its factorization.

33138709817193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227359622868 (or 1227359622862 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 33138709817193 in words is "thirty-three trillion, one hundred thirty-eight billion, seven hundred nine million, eight hundred seventeen thousand, one hundred ninety-three".