18929531116768 has 24 divisors (see below), whose sum is σ = 37269429613920. Its totient is φ = 9464279151360.

The previous prime is 18929531116633. The next prime is 18929531116789. The reversal of 18929531116768 is 86761113592981.

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, 14567413 + ... + 15813556.

It is an arithmetic number, because the mean of its divisors is an integer number (1552892900580).

Almost surely, 2^{18929531116768} is an apocalyptic number.

It is an amenable number.

18929531116768 is a deficient number, since it is larger than the sum of its proper divisors (18339898497152).

18929531116768 is a wasteful number, since it uses less digits than its factorization.

18929531116768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30400450 (or 30400442 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 67.

The spelling of 18929531116768 in words is "eighteen trillion, nine hundred twenty-nine billion, five hundred thirty-one million, one hundred sixteen thousand, seven hundred sixty-eight".