18929848568 has 16 divisors (see below), whose sum is σ = 37581317280. Its totient is φ = 8908163968.

The previous prime is 18929848547. The next prime is 18929848583. The reversal of 18929848568 is 86584892981.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a junction number, because it is equal to n+sod(n) for n = 18929848498 and 18929848507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69594896 + ... + 69595167.

It is an arithmetic number, because the mean of its divisors is an integer number (2348832330).

Almost surely, 2^18929848568 is an apocalyptic number.

It is an amenable number.

18929848568 is a deficient number, since it is larger than the sum of its proper divisors (18651468712).

18929848568 is a wasteful number, since it uses less digits than its factorization.

18929848568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139190086 (or 139190082 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 68.

The spelling of 18929848568 in words is "eighteen billion, nine hundred twenty-nine million, eight hundred forty-eight thousand, five hundred sixty-eight".