133682232638 has 4 divisors (see below), whose sum is σ = 200523348960. Its totient is φ = 66841116318.

The previous prime is 133682232623. The next prime is 133682232641. The reversal of 133682232638 is 836232286331.

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

It is a junction number, because it is equal to n+sod(n) for n = 133682232592 and 133682232601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33420558158 + ... + 33420558161.

It is an arithmetic number, because the mean of its divisors is an integer number (50130837240).

Almost surely, 2^133682232638 is an apocalyptic number.

133682232638 is a deficient number, since it is larger than the sum of its proper divisors (66841116322).

133682232638 is an equidigital number, since it uses as much as digits as its factorization.

133682232638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66841116321.

The product of its digits is 1492992, while the sum is 47.

The spelling of 133682232638 in words is "one hundred thirty-three billion, six hundred eighty-two million, two hundred thirty-two thousand, six hundred thirty-eight".