18693620086 has 8 divisors (see below), whose sum is σ = 28097540424. Its totient is φ = 9327773280.

The previous prime is 18693620063. The next prime is 18693620111. The reversal of 18693620086 is 68002639681.

It is a happy number.

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

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, 9517155 + ... + 9519118.

It is an arithmetic number, because the mean of its divisors is an integer number (3512192553).

Almost surely, 2^18693620086 is an apocalyptic number.

18693620086 is a deficient number, since it is larger than the sum of its proper divisors (9403920338).

18693620086 is a wasteful number, since it uses less digits than its factorization.

18693620086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19036766.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 18693620086 in words is "eighteen billion, six hundred ninety-three million, six hundred twenty thousand, eighty-six".