20119187785 has 8 divisors (see below), whose sum is σ = 25192722240. Its totient is φ = 15395552304.

The previous prime is 20119187771. The next prime is 20119187791. The reversal of 20119187785 is 58778191102.

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 20119187785 - 2²⁵ = 20085633353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87474615 + ... + 87474844.

It is an arithmetic number, because the mean of its divisors is an integer number (3149090280).

Almost surely, 2^20119187785 is an apocalyptic number.

It is an amenable number.

20119187785 is a deficient number, since it is larger than the sum of its proper divisors (5073534455).

20119187785 is a wasteful number, since it uses less digits than its factorization.

20119187785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174949487.

The product of its (nonzero) digits is 282240, while the sum is 49.

The spelling of 20119187785 in words is "twenty billion, one hundred nineteen million, one hundred eighty-seven thousand, seven hundred eighty-five".