3659036735761 has 4 divisors (see below), whose sum is σ = 3991676439024. Its totient is φ = 3326397032500.

The previous prime is 3659036735737. The next prime is 3659036735771. The reversal of 3659036735761 is 1675376309563.

It is a happy number.

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 3659036735761 - 2¹⁹ = 3659036211473 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 3659036735761.

It is not an unprimeable number, because it can be changed into a prime (3659036735771) 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, 166319851615 + ... + 166319851636.

It is an arithmetic number, because the mean of its divisors is an integer number (997919109756).

Almost surely, 2^{3659036735761} is an apocalyptic number.

It is an amenable number.

3659036735761 is a deficient number, since it is larger than the sum of its proper divisors (332639703263).

3659036735761 is a wasteful number, since it uses less digits than its factorization.

3659036735761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332639703262.

The product of its (nonzero) digits is 64297800, while the sum is 61.

The spelling of 3659036735761 in words is "three trillion, six hundred fifty-nine billion, thirty-six million, seven hundred thirty-five thousand, seven hundred sixty-one".