212363025544 has 8 divisors (see below), whose sum is σ = 398180672910. Its totient is φ = 106181512768.

The previous prime is 212363025533. The next prime is 212363025557. The reversal of 212363025544 is 445520363212.

It can be written as a sum of positive squares in only one way, i.e., 162700903044 + 49662122500 = 403362^2 + 222850^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13272689089 + ... + 13272689104.

Almost surely, 2^212363025544 is an apocalyptic number.

It is an amenable number.

212363025544 is a deficient number, since it is larger than the sum of its proper divisors (185817647366).

212363025544 is a wasteful number, since it uses less digits than its factorization.

212363025544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26545378199 (or 26545378195 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 212363025544 its reverse (445520363212), we get a palindrome (657883388756).

The spelling of 212363025544 in words is "two hundred twelve billion, three hundred sixty-three million, twenty-five thousand, five hundred forty-four".