218785416830 has 8 divisors (see below), whose sum is σ = 393813750312. Its totient is φ = 87514166728.

The previous prime is 218785416799. The next prime is 218785416847. The reversal of 218785416830 is 38614587812.

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

It is a congruent number.

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, 10939270832 + ... + 10939270851.

It is an arithmetic number, because the mean of its divisors is an integer number (49226718789).

Almost surely, 2^218785416830 is an apocalyptic number.

218785416830 is a deficient number, since it is larger than the sum of its proper divisors (175028333482).

218785416830 is a wasteful number, since it uses less digits than its factorization.

218785416830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21878541690.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 218785416830 in words is "two hundred eighteen billion, seven hundred eighty-five million, four hundred sixteen thousand, eight hundred thirty".