212045464647 has 12 divisors (see below), whose sum is σ = 322408309080. Its totient is φ = 133923451248.

The previous prime is 212045464583. The next prime is 212045464651. The reversal of 212045464647 is 746464540212.

It is a happy number.

212045464647 is a `hidden beast` number, since 2 + 1 + 20 + 4 + 546 + 46 + 47 = 666.

It is not a de Polignac number, because 212045464647 - 2⁶ = 212045464583 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212045464447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620015808 + ... + 620016149.

It is an arithmetic number, because the mean of its divisors is an integer number (26867359090).

Almost surely, 2^212045464647 is an apocalyptic number.

212045464647 is a deficient number, since it is larger than the sum of its proper divisors (110362844433).

212045464647 is a wasteful number, since it uses less digits than its factorization.

212045464647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240031982 (or 1240031979 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 212045464647 in words is "two hundred twelve billion, forty-five million, four hundred sixty-four thousand, six hundred forty-seven".