134187612856 has 96 divisors (see below), whose sum is σ = 291491524800. Its totient is φ = 57779321600.

The previous prime is 134187612781. The next prime is 134187612859. The reversal of 134187612856 is 658216781431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134187612859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1442721 + ... + 1532911.

It is an arithmetic number, because the mean of its divisors is an integer number (3036370050).

Almost surely, 2^134187612856 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 134187612856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145745762400).

134187612856 is an abundant number, since it is smaller than the sum of its proper divisors (157303911944).

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

134187612856 is a wasteful number, since it uses less digits than its factorization.

134187612856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90301 (or 90286 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The spelling of 134187612856 in words is "one hundred thirty-four billion, one hundred eighty-seven million, six hundred twelve thousand, eight hundred fifty-six".