212747036265 has 48 divisors (see below), whose sum is σ = 411003590400. Its totient is φ = 101170100736.

The previous prime is 212747036239. The next prime is 212747036269. The reversal of 212747036265 is 562630747212.

212747036265 is a `hidden beast` number, since 2 + 12 + 7 + 4 + 7 + 0 + 3 + 626 + 5 = 666.

It is not a de Polignac number, because 212747036265 - 2¹⁷ = 212746905193 is a prime.

It is a super-2 number, since 2×212747036265² (a number of 23 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212747036265.

It is not an unprimeable number, because it can be changed into a prime (212747036269) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7303905 + ... + 7332974.

It is an arithmetic number, because the mean of its divisors is an integer number (8562574800).

Almost surely, 2^212747036265 is an apocalyptic number.

It is an amenable number.

212747036265 is a deficient number, since it is larger than the sum of its proper divisors (198256554135).

212747036265 is a wasteful number, since it uses less digits than its factorization.

212747036265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14636926 (or 14636923 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 212747036265 in words is "two hundred twelve billion, seven hundred forty-seven million, thirty-six thousand, two hundred sixty-five".