218748571948 has 12 divisors (see below), whose sum is σ = 399453914160. Its totient is φ = 104618882192.

The previous prime is 218748571897. The next prime is 218748572057. The reversal of 218748571948 is 849175847812.

It is a self number, because there is not a number n which added to its sum of digits gives 218748571948.

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, 1188850843 + ... + 1188851026.

It is an arithmetic number, because the mean of its divisors is an integer number (33287826180).

Almost surely, 2^218748571948 is an apocalyptic number.

It is an amenable number.

218748571948 is a deficient number, since it is larger than the sum of its proper divisors (180705342212).

218748571948 is a wasteful number, since it uses less digits than its factorization.

218748571948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377701896 (or 2377701894 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 64.

The spelling of 218748571948 in words is "two hundred eighteen billion, seven hundred forty-eight million, five hundred seventy-one thousand, nine hundred forty-eight".