18478605598 has 16 divisors (see below), whose sum is σ = 28243345680. Its totient is φ = 9065742400.

The previous prime is 18478605571. The next prime is 18478605631. The reversal of 18478605598 is 89550687481.

It is a congruent 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, 372913 + ... + 419548.

It is an arithmetic number, because the mean of its divisors is an integer number (1765209105).

Almost surely, 2^18478605598 is an apocalyptic number.

18478605598 is a deficient number, since it is larger than the sum of its proper divisors (9764740082).

18478605598 is a wasteful number, since it uses less digits than its factorization.

18478605598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792683.

The product of its (nonzero) digits is 19353600, while the sum is 61.

The spelling of 18478605598 in words is "eighteen billion, four hundred seventy-eight million, six hundred five thousand, five hundred ninety-eight".