18878582798 has 16 divisors (see below), whose sum is σ = 28367463600. Its totient is φ = 9422776896.

The previous prime is 18878582783. The next prime is 18878582819. The reversal of 18878582798 is 89728587881.

18878582798 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4338728 + ... + 4343076.

It is an arithmetic number, because the mean of its divisors is an integer number (1772966475).

Almost surely, 2^18878582798 is an apocalyptic number.

18878582798 is a deficient number, since it is larger than the sum of its proper divisors (9488880802).

18878582798 is a wasteful number, since it uses less digits than its factorization.

18878582798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651.

The product of its digits is 144506880, while the sum is 71.

The spelling of 18878582798 in words is "eighteen billion, eight hundred seventy-eight million, five hundred eighty-two thousand, seven hundred ninety-eight".