18950645195 has 8 divisors (see below), whose sum is σ = 24078466944. Its totient is φ = 14268721024.

The previous prime is 18950645177. The next prime is 18950645209. The reversal of 18950645195 is 59154605981.

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

It is a cyclic number.

It is not a de Polignac number, because 18950645195 - 2¹⁸ = 18950383051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111474299 + ... + 111474468.

It is an arithmetic number, because the mean of its divisors is an integer number (3009808368).

Almost surely, 2^18950645195 is an apocalyptic number.

18950645195 is a deficient number, since it is larger than the sum of its proper divisors (5127821749).

18950645195 is a wasteful number, since it uses less digits than its factorization.

18950645195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222948789.

The product of its (nonzero) digits is 1944000, while the sum is 53.

The spelling of 18950645195 in words is "eighteen billion, nine hundred fifty million, six hundred forty-five thousand, one hundred ninety-five".