213612641767 has 8 divisors (see below), whose sum is σ = 244132442496. Its totient is φ = 183093768312.

The previous prime is 213612641719. The next prime is 213612641771. The reversal of 213612641767 is 767146216312.

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

It is not a de Polignac number, because 213612641767 - 2⁷ = 213612641639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213612641707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363888 + ... + 748090.

It is an arithmetic number, because the mean of its divisors is an integer number (30516555312).

Almost surely, 2^213612641767 is an apocalyptic number.

213612641767 is a deficient number, since it is larger than the sum of its proper divisors (30519800729).

213612641767 is an equidigital number, since it uses as much as digits as its factorization.

213612641767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463637.

The product of its digits is 508032, while the sum is 46.

The spelling of 213612641767 in words is "two hundred thirteen billion, six hundred twelve million, six hundred forty-one thousand, seven hundred sixty-seven".