218470245950 has 24 divisors (see below), whose sum is σ = 443295991080. Its totient is φ = 79443725600.

The previous prime is 218470245919. The next prime is 218470245967. The reversal of 218470245950 is 59542074812.

It is a junction number, because it is equal to n+sod(n) for n = 218470245895 and 218470245904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198608765 + ... + 198609864.

It is an arithmetic number, because the mean of its divisors is an integer number (18470666295).

Almost surely, 2^218470245950 is an apocalyptic number.

218470245950 is an abundant number, since it is smaller than the sum of its proper divisors (224825745130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218470245950 is a wasteful number, since it uses less digits than its factorization.

218470245950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397218652 (or 397218647 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 218470245950 in words is "two hundred eighteen billion, four hundred seventy million, two hundred forty-five thousand, nine hundred fifty".