132867440639 has 4 divisors (see below), whose sum is σ = 133663054224. Its totient is φ = 132071827056.

The previous prime is 132867440609. The next prime is 132867440647. The reversal of 132867440639 is 936044768231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936044768231 = 229 ⋅4087531739.

It is a cyclic number.

It is not a de Polignac number, because 132867440639 - 2⁸ = 132867440383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132867440609) 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, 397806542 + ... + 397806875.

It is an arithmetic number, because the mean of its divisors is an integer number (33415763556).

Almost surely, 2^132867440639 is an apocalyptic number.

132867440639 is a deficient number, since it is larger than the sum of its proper divisors (795613585).

132867440639 is an equidigital number, since it uses as much as digits as its factorization.

132867440639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795613584.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 132867440639 in words is "one hundred thirty-two billion, eight hundred sixty-seven million, four hundred forty thousand, six hundred thirty-nine".