18958427743 has 4 divisors (see below), whose sum is σ = 19470817720. Its totient is φ = 18446037768.

The previous prime is 18958427737. The next prime is 18958427749. The reversal of 18958427743 is 34772485981.

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

It is an interprime number because it is at equal distance from previous prime (18958427737) and next prime (18958427749).

It is a cyclic number.

It is not a de Polignac number, because 18958427743 - 2⁵ = 18958427711 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 (18958427749) 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, 256194933 + ... + 256195006.

It is an arithmetic number, because the mean of its divisors is an integer number (4867704430).

Almost surely, 2^18958427743 is an apocalyptic number.

18958427743 is a deficient number, since it is larger than the sum of its proper divisors (512389977).

18958427743 is an equidigital number, since it uses as much as digits as its factorization.

18958427743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512389976.

The product of its digits is 13547520, while the sum is 58.

The spelling of 18958427743 in words is "eighteen billion, nine hundred fifty-eight million, four hundred twenty-seven thousand, seven hundred forty-three".