212523854444 has 12 divisors (see below), whose sum is σ = 405727358568. Its totient is φ = 96601752000.

The previous prime is 212523854443. The next prime is 212523854563. The reversal of 212523854444 is 444458325212.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 4830087601 = 212523854444 / (2 + 1 + 2 + 5 + 2 + 3 + 8 + 5 + 4 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 212523854395 and 212523854404.

It is not an unprimeable number, because it can be changed into a prime (212523854441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415043757 + ... + 2415043844.

It is an arithmetic number, because the mean of its divisors is an integer number (33810613214).

Almost surely, 2^212523854444 is an apocalyptic number.

It is an amenable number.

212523854444 is a deficient number, since it is larger than the sum of its proper divisors (193203504124).

212523854444 is a wasteful number, since it uses less digits than its factorization.

212523854444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830087616 (or 4830087614 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 44.

The spelling of 212523854444 in words is "two hundred twelve billion, five hundred twenty-three million, eight hundred fifty-four thousand, four hundred forty-four".