133773731899 has 8 divisors (see below), whose sum is σ = 141556038912. Its totient is φ = 126155263080.

The previous prime is 133773731893. The next prime is 133773731933. The reversal of 133773731899 is 998137377331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133773731899 - 2¹¹ = 133773729851 is a prime.

It is a super-2 number, since 2×133773731899² (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 (133773731893) 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, 40957869 + ... + 40961134.

It is an arithmetic number, because the mean of its divisors is an integer number (17694504864).

Almost surely, 2^133773731899 is an apocalyptic number.

133773731899 is a deficient number, since it is larger than the sum of its proper divisors (7782307013).

133773731899 is an equidigital number, since it uses as much as digits as its factorization.

133773731899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81919097.

The product of its digits is 18003384, while the sum is 61.

The spelling of 133773731899 in words is "one hundred thirty-three billion, seven hundred seventy-three million, seven hundred thirty-one thousand, eight hundred ninety-nine".