133402352788729 has 4 divisors (see below), whose sum is σ = 133404208738420. Its totient is φ = 133400496839040.

The previous prime is 133402352788721. The next prime is 133402352788769. The reversal of 133402352788729 is 927887253204331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68016967617600 + 65385385171129 = 8247240^2 + 8086123^2 .

It is a cyclic number.

It is not a de Polignac number, because 133402352788729 - 2³ = 133402352788721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133402352788721) 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, 927867024 + ... + 928010785.

It is an arithmetic number, because the mean of its divisors is an integer number (33351052184605).

Almost surely, 2^{133402352788729} is an apocalyptic number.

It is an amenable number.

133402352788729 is a deficient number, since it is larger than the sum of its proper divisors (1855949691).

133402352788729 is an equidigital number, since it uses as much as digits as its factorization.

133402352788729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855949690.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 133402352788729 in words is "one hundred thirty-three trillion, four hundred two billion, three hundred fifty-two million, seven hundred eighty-eight thousand, seven hundred twenty-nine".