3686544011438 has 16 divisors (see below), whose sum is σ = 5586827451216. Its totient is φ = 1824362040960.

The previous prime is 3686544011429. The next prime is 3686544011441. The reversal of 3686544011438 is 8341104456863.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3686544011438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23382881 + ... + 23540012.

It is an arithmetic number, because the mean of its divisors is an integer number (349176715701).

Almost surely, 2^{3686544011438} is an apocalyptic number.

3686544011438 is a deficient number, since it is larger than the sum of its proper divisors (1900283439778).

3686544011438 is a wasteful number, since it uses less digits than its factorization.

3686544011438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46923299.

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 3686544011438 in words is "three trillion, six hundred eighty-six billion, five hundred forty-four million, eleven thousand, four hundred thirty-eight".