18140706678 has 8 divisors (see below), whose sum is σ = 36281413368. Its totient is φ = 6046902224.

The previous prime is 18140706583. The next prime is 18140706737. The reversal of 18140706678 is 87660704181.

It is a sphenic number, since it is the product of 3 distinct primes.

18140706678 is an admirable number.

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, 1511725551 + ... + 1511725562.

It is an arithmetic number, because the mean of its divisors is an integer number (4535176671).

Almost surely, 2^18140706678 is an apocalyptic number.

18140706678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18140706678 is a wasteful number, since it uses less digits than its factorization.

18140706678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023451118.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 18140706678 in words is "eighteen billion, one hundred forty million, seven hundred six thousand, six hundred seventy-eight".