132993865947 has 4 divisors (see below), whose sum is σ = 177325154600. Its totient is φ = 88662577296.

The previous prime is 132993865943. The next prime is 132993865993. The reversal of 132993865947 is 749568399231.

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

It is not a de Polignac number, because 132993865947 - 2² = 132993865943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132993865943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22165644322 + ... + 22165644327.

It is an arithmetic number, because the mean of its divisors is an integer number (44331288650).

Almost surely, 2^132993865947 is an apocalyptic number.

132993865947 is a deficient number, since it is larger than the sum of its proper divisors (44331288653).

132993865947 is an equidigital number, since it uses as much as digits as its factorization.

132993865947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44331288652.

The product of its digits is 88179840, while the sum is 66.

The spelling of 132993865947 in words is "one hundred thirty-two billion, nine hundred ninety-three million, eight hundred sixty-five thousand, nine hundred forty-seven".