204133782379 has 4 divisors (see below), whose sum is σ = 204145383376. Its totient is φ = 204122181384.

The previous prime is 204133782373. The next prime is 204133782421. The reversal of 204133782379 is 973287331402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973287331402 = 2 ⋅486643665701.

It is a cyclic number.

It is not a de Polignac number, because 204133782379 - 2³ = 204133782371 is a prime.

It is a super-2 number, since 2×204133782379² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204133782371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5774064 + ... + 5809309.

It is an arithmetic number, because the mean of its divisors is an integer number (51036345844).

Almost surely, 2^204133782379 is an apocalyptic number.

204133782379 is a deficient number, since it is larger than the sum of its proper divisors (11600997).

204133782379 is a wasteful number, since it uses less digits than its factorization.

204133782379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11600996.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 204133782379 in words is "two hundred four billion, one hundred thirty-three million, seven hundred eighty-two thousand, three hundred seventy-nine".