212862635818 has 64 divisors (see below), whose sum is σ = 386546688000. Its totient is φ = 85878999360.

The previous prime is 212862635773. The next prime is 212862635831. The reversal of 212862635818 is 818536268212.

212862635818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51928333 + ... + 51932431.

It is an arithmetic number, because the mean of its divisors is an integer number (6039792000).

Almost surely, 2^212862635818 is an apocalyptic number.

212862635818 is a deficient number, since it is larger than the sum of its proper divisors (173684052182).

212862635818 is a wasteful number, since it uses less digits than its factorization.

212862635818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315.

The product of its digits is 2211840, while the sum is 52.

The spelling of 212862635818 in words is "two hundred twelve billion, eight hundred sixty-two million, six hundred thirty-five thousand, eight hundred eighteen".