212708775044 has 12 divisors (see below), whose sum is σ = 382300906764. Its totient is φ = 103479944544.

The previous prime is 212708775031. The next prime is 212708775047. The reversal of 212708775044 is 440577807212.

It can be written as a sum of positive squares in 2 ways, for example, as 169085440000 + 43623335044 = 411200^2 + 208862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212708775044.

It is not an unprimeable number, because it can be changed into a prime (212708775047) 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, 718610579 + ... + 718610874.

It is an arithmetic number, because the mean of its divisors is an integer number (31858408897).

Almost surely, 2^212708775044 is an apocalyptic number.

It is an amenable number.

212708775044 is a deficient number, since it is larger than the sum of its proper divisors (169592131720).

212708775044 is a wasteful number, since it uses less digits than its factorization.

212708775044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437221494 (or 1437221492 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 47.

The spelling of 212708775044 in words is "two hundred twelve billion, seven hundred eight million, seven hundred seventy-five thousand, forty-four".