243214256626613 has 4 divisors (see below), whose sum is σ = 243268948391040. Its totient is φ = 243159564862188.

The previous prime is 243214256626597. The next prime is 243214256626651. The reversal of 243214256626613 is 316626652412342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243214256626613 - 2⁴ = 243214256626597 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 (243214253626613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27345875543 + ... + 27345884436.

It is an arithmetic number, because the mean of its divisors is an integer number (60817237097760).

Almost surely, 2^{243214256626613} is an apocalyptic number.

It is an amenable number.

243214256626613 is a deficient number, since it is larger than the sum of its proper divisors (54691764427).

243214256626613 is an equidigital number, since it uses as much as digits as its factorization.

243214256626613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54691764426.

The product of its digits is 14929920, while the sum is 53.

The spelling of 243214256626613 in words is "two hundred forty-three trillion, two hundred fourteen billion, two hundred fifty-six million, six hundred twenty-six thousand, six hundred thirteen".