3543721568 has 12 divisors (see below), whose sum is σ = 6976701900. Its totient is φ = 1771860768.

The previous prime is 3543721537. The next prime is 3543721679. The reversal of 3543721568 is 8651273453.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55370618 + ... + 55370681.

It is an arithmetic number, because the mean of its divisors is an integer number (581391825).

Almost surely, 2^3543721568 is an apocalyptic number.

It is an amenable number.

3543721568 is a deficient number, since it is larger than the sum of its proper divisors (3432980332).

3543721568 is a wasteful number, since it uses less digits than its factorization.

3543721568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110741309 (or 110741301 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 3543721568 is about 59529.1656921210. The cubic root of 3543721568 is about 1524.5904578666.

The spelling of 3543721568 in words is "three billion, five hundred forty-three million, seven hundred twenty-one thousand, five hundred sixty-eight".