132811783691 has 4 divisors (see below), whose sum is σ = 137391500400. Its totient is φ = 128232066984.

The previous prime is 132811783681. The next prime is 132811783693. The reversal of 132811783691 is 196387118231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 132811783691 - 2⁶ = 132811783627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132811783693) 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, 2289858311 + ... + 2289858368.

It is an arithmetic number, because the mean of its divisors is an integer number (34347875100).

Almost surely, 2^132811783691 is an apocalyptic number.

132811783691 is a deficient number, since it is larger than the sum of its proper divisors (4579716709).

132811783691 is an equidigital number, since it uses as much as digits as its factorization.

132811783691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579716708.

The product of its digits is 435456, while the sum is 50.

The spelling of 132811783691 in words is "one hundred thirty-two billion, eight hundred eleven million, seven hundred eighty-three thousand, six hundred ninety-one".