134368439808 has 80 divisors (see below), whose sum is σ = 358281639936. Its totient is φ = 44749977600.

The previous prime is 134368439801. The next prime is 134368439809. The reversal of 134368439808 is 808934863431.

It is a super-2 number, since 2×134368439808² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134368439801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729935 + ... + 1805937.

Almost surely, 2^134368439808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134368439808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179140819968).

134368439808 is an abundant number, since it is smaller than the sum of its proper divisors (223913200128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134368439808 is an equidigital number, since it uses as much as digits as its factorization.

134368439808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77175 (or 77159 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 134368439808 in words is "one hundred thirty-four billion, three hundred sixty-eight million, four hundred thirty-nine thousand, eight hundred eight".