636441313004134 has 32 divisors (see below), whose sum is σ = 1065852509635584. Its totient is φ = 282515185085280.

The previous prime is 636441313004131. The next prime is 636441313004213. The reversal of 636441313004134 is 431400313144636.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636441313004131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52368694 + ... + 63366889.

It is an arithmetic number, because the mean of its divisors is an integer number (33307890926112).

Almost surely, 2^{636441313004134} is an apocalyptic number.

636441313004134 is a deficient number, since it is larger than the sum of its proper divisors (429411196631450).

636441313004134 is a wasteful number, since it uses less digits than its factorization.

636441313004134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115741452.

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 636441313004134 in words is "six hundred thirty-six trillion, four hundred forty-one billion, three hundred thirteen million, four thousand, one hundred thirty-four".