212283804366864 has 60 divisors (see below), whose sum is σ = 594175759472256. Its totient is φ = 70752222461376.

The previous prime is 212283804366833. The next prime is 212283804366937. The reversal of 212283804366864 is 468663408382212.

212283804366864 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 8 + 3 + 80 + 436 + 68 + 64 = 666.

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, 93095212 + ... + 95348235.

Almost surely, 2^{212283804366864} is an apocalyptic number.

212283804366864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212283804366864 is an abundant number, since it is smaller than the sum of its proper divisors (381891955105392).

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

212283804366864 is a wasteful number, since it uses less digits than its factorization.

212283804366864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188451284 (or 188451275 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 63.

The spelling of 212283804366864 in words is "two hundred twelve trillion, two hundred eighty-three billion, eight hundred four million, three hundred sixty-six thousand, eight hundred sixty-four".