3643268542 has 4 divisors (see below), whose sum is σ = 5464902816. Its totient is φ = 1821634270.

The previous prime is 3643268533. The next prime is 3643268549. The reversal of 3643268542 is 2458623463.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643268549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910817134 + ... + 910817137.

It is an arithmetic number, because the mean of its divisors is an integer number (1366225704).

Almost surely, 2^3643268542 is an apocalyptic number.

3643268542 is a deficient number, since it is larger than the sum of its proper divisors (1821634274).

3643268542 is a wasteful number, since it uses less digits than its factorization.

3643268542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821634273.

The product of its digits is 829440, while the sum is 43.

The square root of 3643268542 is about 60359.4942159061. The cubic root of 3643268542 is about 1538.7346301601.

The spelling of 3643268542 in words is "three billion, six hundred forty-three million, two hundred sixty-eight thousand, five hundred forty-two".