19752344618 has 16 divisors (see below), whose sum is σ = 30263470560. Its totient is φ = 9665996496.

The previous prime is 19752344609. The next prime is 19752344621. The reversal of 19752344618 is 81644325791.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341921 + ... + 395492.

It is an arithmetic number, because the mean of its divisors is an integer number (1891466910).

Almost surely, 2^19752344618 is an apocalyptic number.

19752344618 is a deficient number, since it is larger than the sum of its proper divisors (10511125942).

19752344618 is a wasteful number, since it uses less digits than its factorization.

19752344618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737701.

The product of its digits is 1451520, while the sum is 50.

The spelling of 19752344618 in words is "nineteen billion, seven hundred fifty-two million, three hundred forty-four thousand, six hundred eighteen".