134326636306520 has 512 divisors, whose sum is σ = 371645810565120. Its totient is φ = 42651123056640.

The previous prime is 134326636306483. The next prime is 134326636306529. The reversal of 134326636306520 is 25603636623431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134326636306529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 50290764785 + ... + 50290767455.

It is an arithmetic number, because the mean of its divisors is an integer number (725870723760).

Almost surely, 2^{134326636306520} is an apocalyptic number.

134326636306520 is a gapful number since it is divisible by the number (10) 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 134326636306520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185822905282560).

134326636306520 is an abundant number, since it is smaller than the sum of its proper divisors (237319174258600).

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

134326636306520 is a wasteful number, since it uses less digits than its factorization.

134326636306520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 50.

The spelling of 134326636306520 in words is "one hundred thirty-four trillion, three hundred twenty-six billion, six hundred thirty-six million, three hundred six thousand, five hundred twenty".