18929346976 has 24 divisors (see below), whose sum is σ = 38469320064. Its totient is φ = 9159360960.

The previous prime is 18929346967. The next prime is 18929347013. The reversal of 18929346976 is 67964392981.

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, 9540010 + ... + 9541993.

It is an arithmetic number, because the mean of its divisors is an integer number (1602888336).

Almost surely, 2^18929346976 is an apocalyptic number.

18929346976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18929346976 is an abundant number, since it is smaller than the sum of its proper divisors (19539973088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18929346976 is a wasteful number, since it uses less digits than its factorization.

18929346976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19082044 (or 19082036 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 64.

The spelling of 18929346976 in words is "eighteen billion, nine hundred twenty-nine million, three hundred forty-six thousand, nine hundred seventy-six".