134721352608 has 96 divisors (see below), whose sum is σ = 357099462720. Its totient is φ = 44468766720.

The previous prime is 134721352561. The next prime is 134721352639. The reversal of 134721352608 is 806253127431.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 134721352608.

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, 26377191 + ... + 26382297.

It is an arithmetic number, because the mean of its divisors is an integer number (3719786070).

Almost surely, 2^134721352608 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 134721352608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178549731360).

134721352608 is an abundant number, since it is smaller than the sum of its proper divisors (222378110112).

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

134721352608 is a wasteful number, since it uses less digits than its factorization.

134721352608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7750 (or 7742 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 134721352608 in words is "one hundred thirty-four billion, seven hundred twenty-one million, three hundred fifty-two thousand, six hundred eight".