134963521836 has 192 divisors, whose sum is σ = 372621150720. Its totient is φ = 37482762240.

The previous prime is 134963521817. The next prime is 134963521879. The reversal of 134963521836 is 638125369431.

It is a happy number.

134963521836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 242304070 + ... + 242304626.

It is an arithmetic number, because the mean of its divisors is an integer number (1940735160).

Almost surely, 2^134963521836 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 134963521836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186310575360).

134963521836 is an abundant number, since it is smaller than the sum of its proper divisors (237657628884).

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

134963521836 is a wasteful number, since it uses less digits than its factorization.

134963521836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1342 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The spelling of 134963521836 in words is "one hundred thirty-four billion, nine hundred sixty-three million, five hundred twenty-one thousand, eight hundred thirty-six".