262444426243 has 4 divisors (see below), whose sum is σ = 262450941928. Its totient is φ = 262437910560.

The previous prime is 262444426217. The next prime is 262444426273. The reversal of 262444426243 is 342624444262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-262444426243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 262444426243.

It is not an unprimeable number, because it can be changed into a prime (262444426273) 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, 3197046 + ... + 3278107.

It is an arithmetic number, because the mean of its divisors is an integer number (65612735482).

Almost surely, 2^262444426243 is an apocalyptic number.

262444426243 is a deficient number, since it is larger than the sum of its proper divisors (6515685).

262444426243 is an equidigital number, since it uses as much as digits as its factorization.

262444426243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6515684.

The product of its digits is 1769472, while the sum is 43.

The spelling of 262444426243 in words is "two hundred sixty-two billion, four hundred forty-four million, four hundred twenty-six thousand, two hundred forty-three".