134365943778 has 64 divisors (see below), whose sum is σ = 304009085952. Its totient is φ = 39231794880.

The previous prime is 134365943771. The next prime is 134365943783. The reversal of 134365943778 is 877349563431.

It is not an unprimeable number, because it can be changed into a prime (134365943771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15576 + ... + 518627.

It is an arithmetic number, because the mean of its divisors is an integer number (4750141968).

Almost surely, 2^134365943778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134365943778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152004542976).

134365943778 is an abundant number, since it is smaller than the sum of its proper divisors (169643142174).

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

134365943778 is a wasteful number, since it uses less digits than its factorization.

134365943778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534359.

The product of its digits is 45722880, while the sum is 60.

The spelling of 134365943778 in words is "one hundred thirty-four billion, three hundred sixty-five million, nine hundred forty-three thousand, seven hundred seventy-eight".