3685536438497 has 4 divisors (see below), whose sum is σ = 3685558713600. Its totient is φ = 3685514163396.

The previous prime is 3685536438469. The next prime is 3685536438503. The reversal of 3685536438497 is 7948346355863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3685536438497 - 2³⁶ = 3616816961761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3685536438497.

It is not an unprimeable number, because it can be changed into a prime (3685536438457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10887497 + ... + 11220902.

It is an arithmetic number, because the mean of its divisors is an integer number (921389678400).

Almost surely, 2^{3685536438497} is an apocalyptic number.

It is an amenable number.

3685536438497 is a deficient number, since it is larger than the sum of its proper divisors (22275103).

3685536438497 is a wasteful number, since it uses less digits than its factorization.

3685536438497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22275102.

The product of its digits is 1567641600, while the sum is 71.

The spelling of 3685536438497 in words is "three trillion, six hundred eighty-five billion, five hundred thirty-six million, four hundred thirty-eight thousand, four hundred ninety-seven".