132689450878 has 4 divisors (see below), whose sum is σ = 199034176320. Its totient is φ = 66344725438.

The previous prime is 132689450843. The next prime is 132689450879. The reversal of 132689450878 is 878054986231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132689450879) 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 as a sum of consecutive naturals, namely, 33172362718 + ... + 33172362721.

It is an arithmetic number, because the mean of its divisors is an integer number (49758544080).

It is a 1-persistent number, because it is pandigital, but 2⋅132689450878 = 265378901756 is not.

Almost surely, 2^132689450878 is an apocalyptic number.

132689450878 is a deficient number, since it is larger than the sum of its proper divisors (66344725442).

132689450878 is an equidigital number, since it uses as much as digits as its factorization.

132689450878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66344725441.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 132689450878 in words is "one hundred thirty-two billion, six hundred eighty-nine million, four hundred fifty thousand, eight hundred seventy-eight".