212453763272 has 8 divisors (see below), whose sum is σ = 398350806150. Its totient is φ = 106226881632.

The previous prime is 212453763271. The next prime is 212453763329. The reversal of 212453763272 is 272367354212.

212453763272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 192382240996 + 20071522276 = 438614^2 + 141674^2 .

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

It is a super-2 number, since 2×212453763272² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212453763271) 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, 13278360197 + ... + 13278360212.

Almost surely, 2^212453763272 is an apocalyptic number.

It is an amenable number.

212453763272 is a deficient number, since it is larger than the sum of its proper divisors (185897042878).

212453763272 is a wasteful number, since it uses less digits than its factorization.

212453763272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26556720415 (or 26556720411 counting only the distinct ones).

The product of its digits is 846720, while the sum is 44.

The spelling of 212453763272 in words is "two hundred twelve billion, four hundred fifty-three million, seven hundred sixty-three thousand, two hundred seventy-two".