212554043415 has 48 divisors (see below), whose sum is σ = 427962090816. Its totient is φ = 95574643200.

The previous prime is 212554043407. The next prime is 212554043419. The reversal of 212554043415 is 514340455212.

212554043415 is a `hidden beast` number, since 21 + 2 + 554 + 0 + 43 + 41 + 5 = 666.

212554043415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212554043415 - 2³ = 212554043407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212554043415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212554043419) 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 in 47 ways as a sum of consecutive naturals, for example, 5511726 + ... + 5550155.

It is an arithmetic number, because the mean of its divisors is an integer number (8915876892).

Almost surely, 2^212554043415 is an apocalyptic number.

212554043415 is an abundant number, since it is smaller than the sum of its proper divisors (215408047401).

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

212554043415 is a wasteful number, since it uses less digits than its factorization.

212554043415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061960 (or 11061957 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 212554043415 its reverse (514340455212), we get a palindrome (726894498627).

The spelling of 212554043415 in words is "two hundred twelve billion, five hundred fifty-four million, forty-three thousand, four hundred fifteen".