18775195538 has 8 divisors (see below), whose sum is σ = 30723047280. Its totient is φ = 8534179780.

The previous prime is 18775195513. The next prime is 18775195541. The reversal of 18775195538 is 83559157781.

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

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, 426708968 + ... + 426709011.

It is an arithmetic number, because the mean of its divisors is an integer number (3840380910).

Almost surely, 2^18775195538 is an apocalyptic number.

18775195538 is a deficient number, since it is larger than the sum of its proper divisors (11947851742).

18775195538 is a wasteful number, since it uses less digits than its factorization.

18775195538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853417992.

The product of its digits is 10584000, while the sum is 59.

The spelling of 18775195538 in words is "eighteen billion, seven hundred seventy-five million, one hundred ninety-five thousand, five hundred thirty-eight".