219785048087 has 4 divisors (see below), whose sum is σ = 239765507016. Its totient is φ = 199804589160.

The previous prime is 219785048081. The next prime is 219785048099. The reversal of 219785048087 is 780840587912.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 219785048087 - 2¹⁶ = 219784982551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219785048081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9990229448 + ... + 9990229469.

It is an arithmetic number, because the mean of its divisors is an integer number (59941376754).

Almost surely, 2^219785048087 is an apocalyptic number.

219785048087 is a deficient number, since it is larger than the sum of its proper divisors (19980458929).

219785048087 is a wasteful number, since it uses less digits than its factorization.

219785048087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19980458928.

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 219785048087 in words is "two hundred nineteen billion, seven hundred eighty-five million, forty-eight thousand, eighty-seven".