218012406970 has 16 divisors (see below), whose sum is σ = 392461242120. Its totient is φ = 87196316224.

The previous prime is 218012406929. The next prime is 218012407001. The reversal of 218012406970 is 79604210812.

It can be written as a sum of positive squares in 4 ways, for example, as 158353855969 + 59658551001 = 397937^2 + 244251^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974425 + ... + 1177084.

Almost surely, 2^218012406970 is an apocalyptic number.

218012406970 is a deficient number, since it is larger than the sum of its proper divisors (174448835150).

218012406970 is a wasteful number, since it uses less digits than its factorization.

218012406970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161649.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 218012406970 in words is "two hundred eighteen billion, twelve million, four hundred six thousand, nine hundred seventy".