212959154872 has 8 divisors (see below), whose sum is σ = 399298415400. Its totient is φ = 106479577432.

The previous prime is 212959154791. The next prime is 212959154873. The reversal of 212959154872 is 278451959212.

212959154872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212959154873) by changing a digit.

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 as a sum of consecutive naturals, namely, 13309947172 + ... + 13309947187.

It is an arithmetic number, because the mean of its divisors is an integer number (49912301925).

Almost surely, 2^212959154872 is an apocalyptic number.

It is an amenable number.

212959154872 is a deficient number, since it is larger than the sum of its proper divisors (186339260528).

212959154872 is a wasteful number, since it uses less digits than its factorization.

212959154872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26619894365 (or 26619894361 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 55.

The spelling of 212959154872 in words is "two hundred twelve billion, nine hundred fifty-nine million, one hundred fifty-four thousand, eight hundred seventy-two".