212453465886 has 24 divisors (see below), whose sum is σ = 460900772904. Its totient is φ = 70727832720.

The previous prime is 212453465869. The next prime is 212453465893. The reversal of 212453465886 is 688564354212.

212453465886 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 53 + 4 + 6 + 588 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7484545 + ... + 7512876.

It is an arithmetic number, because the mean of its divisors is an integer number (19204198871).

Almost surely, 2^212453465886 is an apocalyptic number.

212453465886 is an abundant number, since it is smaller than the sum of its proper divisors (248447307018).

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

212453465886 is a wasteful number, since it uses less digits than its factorization.

212453465886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14998216 (or 14998213 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 54.

The spelling of 212453465886 in words is "two hundred twelve billion, four hundred fifty-three million, four hundred sixty-five thousand, eight hundred eighty-six".