134689894656 has 144 divisors (see below), whose sum is σ = 377858255040. Its totient is φ = 42475069440.

The previous prime is 134689894649. The next prime is 134689894673. The reversal of 134689894656 is 656498986431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11273646 + ... + 11285586.

It is an arithmetic number, because the mean of its divisors is an integer number (2624015660).

Almost surely, 2^134689894656 is an apocalyptic number.

134689894656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134689894656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188929127520).

134689894656 is an abundant number, since it is smaller than the sum of its proper divisors (243168360384).

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

134689894656 is a wasteful number, since it uses less digits than its factorization.

134689894656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12752 (or 12738 counting only the distinct ones).

The product of its digits is 268738560, while the sum is 69.

The spelling of 134689894656 in words is "one hundred thirty-four billion, six hundred eighty-nine million, eight hundred ninety-four thousand, six hundred fifty-six".