3643206232431 has 4 divisors (see below), whose sum is σ = 4857608309912. Its totient is φ = 2428804154952.

The previous prime is 3643206232423. The next prime is 3643206232441. The reversal of 3643206232431 is 1342326023463.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3643206232431 - 2³ = 3643206232423 is a prime.

It is a super-2 number, since 2×3643206232431² (a number of 26 digits) contains 22 as substring.

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 3643206232431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643206232441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607201038736 + ... + 607201038741.

It is an arithmetic number, because the mean of its divisors is an integer number (1214402077478).

Almost surely, 2^{3643206232431} is an apocalyptic number.

3643206232431 is a deficient number, since it is larger than the sum of its proper divisors (1214402077481).

3643206232431 is a wasteful number, since it uses less digits than its factorization.

3643206232431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214402077480.

The product of its (nonzero) digits is 373248, while the sum is 39.

The spelling of 3643206232431 in words is "three trillion, six hundred forty-three billion, two hundred six million, two hundred thirty-two thousand, four hundred thirty-one".