212643772707 has 8 divisors (see below), whose sum is σ = 288172981840. Its totient is φ = 139438539360.

The previous prime is 212643772703. The next prime is 212643772711. The reversal of 212643772707 is 707277346212.

It is an interprime number because it is at equal distance from previous prime (212643772703) and next prime (212643772711).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212643772707 - 2² = 212643772703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212643772703) 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 7 ways as a sum of consecutive naturals, for example, 580993732 + ... + 580994097.

It is an arithmetic number, because the mean of its divisors is an integer number (36021622730).

Almost surely, 2^212643772707 is an apocalyptic number.

212643772707 is a deficient number, since it is larger than the sum of its proper divisors (75529209133).

212643772707 is a wasteful number, since it uses less digits than its factorization.

212643772707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161987893.

The product of its (nonzero) digits is 1382976, while the sum is 48.

The spelling of 212643772707 in words is "two hundred twelve billion, six hundred forty-three million, seven hundred seventy-two thousand, seven hundred seven".