134347765266 has 384 divisors, whose sum is σ = 378829301760. Its totient is φ = 35075980800.

The previous prime is 134347765207. The next prime is 134347765267. The reversal of 134347765266 is 662567743431.

134347765266 is a `hidden beast` number, since 1 + 3 + 4 + 3 + 47 + 76 + 526 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (134347765267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 93752086 + ... + 93753518.

It is an arithmetic number, because the mean of its divisors is an integer number (986534640).

Almost surely, 2^134347765266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134347765266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189414650880).

134347765266 is an abundant number, since it is smaller than the sum of its proper divisors (244481536494).

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

134347765266 is a wasteful number, since it uses less digits than its factorization.

134347765266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1552 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 54.

The spelling of 134347765266 in words is "one hundred thirty-four billion, three hundred forty-seven million, seven hundred sixty-five thousand, two hundred sixty-six".