242726694421 has 4 divisors (see below), whose sum is σ = 248371501312. Its totient is φ = 237081887532.

The previous prime is 242726694409. The next prime is 242726694451. The reversal of 242726694421 is 124496627242.

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 242726694421 - 2⁷ = 242726694293 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 (242726694451) 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, 2822403381 + ... + 2822403466.

It is an arithmetic number, because the mean of its divisors is an integer number (62092875328).

Almost surely, 2^242726694421 is an apocalyptic number.

It is an amenable number.

242726694421 is a deficient number, since it is larger than the sum of its proper divisors (5644806891).

242726694421 is an equidigital number, since it uses as much as digits as its factorization.

242726694421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644806890.

The product of its digits is 2322432, while the sum is 49.

The spelling of 242726694421 in words is "two hundred forty-two billion, seven hundred twenty-six million, six hundred ninety-four thousand, four hundred twenty-one".