134405891712 has 96 divisors (see below), whose sum is σ = 388771570980. Its totient is φ = 44569755648.

The previous prime is 134405891701. The next prime is 134405891731. The reversal of 134405891712 is 217198504431.

134405891712 is a `hidden beast` number, since 1 + 3 + 4 + 40 + 589 + 17 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 107935903296 + 26469988416 = 328536^2 + 162696^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79923 + ... + 524594.

Almost surely, 2^134405891712 is an apocalyptic number.

134405891712 is a gapful number since it is divisible by the number (12) 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 134405891712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194385785490).

134405891712 is an abundant number, since it is smaller than the sum of its proper divisors (254365679268).

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

134405891712 is a wasteful number, since it uses less digits than its factorization.

134405891712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604730 (or 604715 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 134405891712 in words is "one hundred thirty-four billion, four hundred five million, eight hundred ninety-one thousand, seven hundred twelve".