212484772530 has 64 divisors (see below), whose sum is σ = 581940305280. Its totient is φ = 55131181632.

The previous prime is 212484772499. The next prime is 212484772543. The reversal of 212484772530 is 35277484212.

212484772530 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 8 + 47 + 72 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10624884 + ... + 10644863.

It is an arithmetic number, because the mean of its divisors is an integer number (9092817270).

Almost surely, 2^212484772530 is an apocalyptic number.

212484772530 is an abundant number, since it is smaller than the sum of its proper divisors (369455532750).

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

212484772530 is a wasteful number, since it uses less digits than its factorization.

212484772530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21269800 (or 21269794 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 212484772530 in words is "two hundred twelve billion, four hundred eighty-four million, seven hundred seventy-two thousand, five hundred thirty".