219140790187 has 8 divisors (see below), whose sum is σ = 242088791040. Its totient is φ = 196697141160.

The previous prime is 219140790173. The next prime is 219140790251. The reversal of 219140790187 is 781097041912.

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 219140790187 - 2⁷ = 219140790059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 219140790187.

It is not an unprimeable number, because it can be changed into a prime (219140700187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126087043 + ... + 126088780.

It is an arithmetic number, because the mean of its divisors is an integer number (30261098880).

Almost surely, 2^219140790187 is an apocalyptic number.

219140790187 is a deficient number, since it is larger than the sum of its proper divisors (22948000853).

219140790187 is a wasteful number, since it uses less digits than its factorization.

219140790187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252175913.

The product of its (nonzero) digits is 254016, while the sum is 49.

The spelling of 219140790187 in words is "two hundred nineteen billion, one hundred forty million, seven hundred ninety thousand, one hundred eighty-seven".