18973106678 has 16 divisors (see below), whose sum is σ = 30237520320. Its totient is φ = 8903266056.

The previous prime is 18973106623. The next prime is 18973106693. The reversal of 18973106678 is 87660137981.

It is a super-3 number, since 3×18973106678³ (a number of 32 digits) contains 333 as substring.

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, 2329076 + ... + 2337207.

It is an arithmetic number, because the mean of its divisors is an integer number (1889845020).

Almost surely, 2^18973106678 is an apocalyptic number.

18973106678 is a deficient number, since it is larger than the sum of its proper divisors (11264413642).

18973106678 is a wasteful number, since it uses less digits than its factorization.

18973106678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666411.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 18973106678 in words is "eighteen billion, nine hundred seventy-three million, one hundred six thousand, six hundred seventy-eight".