133728669067923 has 6 divisors (see below), whose sum is σ = 193163633098124. Its totient is φ = 89152446045276.

The previous prime is 133728669067907. The next prime is 133728669067927. The reversal of 133728669067923 is 329760966827331.

133728669067923 is a `hidden beast` number, since 1 + 3 + 372 + 86 + 6 + 90 + 6 + 7 + 92 + 3 = 666.

It is not a de Polignac number, because 133728669067923 - 2⁴ = 133728669067907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133728669067927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7429370503765 + ... + 7429370503782.

Almost surely, 2^{133728669067923} is an apocalyptic number.

133728669067923 is a deficient number, since it is larger than the sum of its proper divisors (59434964030201).

133728669067923 is a wasteful number, since it uses less digits than its factorization.

133728669067923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14858741007553 (or 14858741007550 counting only the distinct ones).

The product of its (nonzero) digits is 740710656, while the sum is 72.

The spelling of 133728669067923 in words is "one hundred thirty-three trillion, seven hundred twenty-eight billion, six hundred sixty-nine million, sixty-seven thousand, nine hundred twenty-three".