3918241568 has 12 divisors (see below), whose sum is σ = 7714038150. Its totient is φ = 1959120768.

The previous prime is 3918241553. The next prime is 3918241573. The reversal of 3918241568 is 8651428193.

It is a happy number.

3918241568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3675754384 + 242487184 = 60628^2 + 15572^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61222493 + ... + 61222556.

Almost surely, 2^3918241568 is an apocalyptic number.

It is an amenable number.

3918241568 is a deficient number, since it is larger than the sum of its proper divisors (3795796582).

3918241568 is a wasteful number, since it uses less digits than its factorization.

3918241568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122445059 (or 122445051 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 3918241568 is about 62595.8590323673. The cubic root of 3918241568 is about 1576.5112318456.

The spelling of 3918241568 in words is "three billion, nine hundred eighteen million, two hundred forty-one thousand, five hundred sixty-eight".