3565820243643 has 96 divisors (see below), whose sum is σ = 5941400855040. Its totient is φ = 1889809044480.

The previous prime is 3565820243639. The next prime is 3565820243659. The reversal of 3565820243643 is 3463420285653.

It is not a de Polignac number, because 3565820243643 - 2² = 3565820243639 is a prime.

It is a super-2 number, since 2×3565820243643² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (3565820243443) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 504427113 + ... + 504434181.

It is an arithmetic number, because the mean of its divisors is an integer number (61889592240).

Almost surely, 2^{3565820243643} is an apocalyptic number.

3565820243643 is a deficient number, since it is larger than the sum of its proper divisors (2375580611397).

3565820243643 is a wasteful number, since it uses less digits than its factorization.

3565820243643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10017 (or 10010 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 51.

The spelling of 3565820243643 in words is "three trillion, five hundred sixty-five billion, eight hundred twenty million, two hundred forty-three thousand, six hundred forty-three".