212797306044 has 72 divisors (see below), whose sum is σ = 542486720048. Its totient is φ = 70330498560.

The previous prime is 212797306039. The next prime is 212797306061. The reversal of 212797306044 is 440603797212.

212797306044 is a `hidden beast` number, since 2 + 1 + 2 + 7 + 9 + 7 + 30 + 604 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2147439 + ... + 2244345.

Almost surely, 2^212797306044 is an apocalyptic number.

It is an amenable number.

212797306044 is an abundant number, since it is smaller than the sum of its proper divisors (329689414004).

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

212797306044 is a wasteful number, since it uses less digits than its factorization.

212797306044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97435 (or 97430 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 212797306044 in words is "two hundred twelve billion, seven hundred ninety-seven million, three hundred six thousand, forty-four".