212168286054 has 24 divisors (see below), whose sum is σ = 460619211000. Its totient is φ = 70581030048.

The previous prime is 212168286019. The next prime is 212168286061. The reversal of 212168286054 is 450682861212.

212168286054 is a `hidden beast` number, since 2 + 1 + 2 + 16 + 8 + 28 + 605 + 4 = 666.

It is a Curzon number.

It is a congruent number.

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, 11801767 + ... + 11819730.

It is an arithmetic number, because the mean of its divisors is an integer number (19192467125).

Almost surely, 2^212168286054 is an apocalyptic number.

212168286054 is an abundant number, since it is smaller than the sum of its proper divisors (248450924946).

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

212168286054 is a wasteful number, since it uses less digits than its factorization.

212168286054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23622004 (or 23622001 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 212168286054 in words is "two hundred twelve billion, one hundred sixty-eight million, two hundred eighty-six thousand, fifty-four".