18740654743 has 4 divisors (see below), whose sum is σ = 18966445848. Its totient is φ = 18514863640.

The previous prime is 18740654741. The next prime is 18740654761. The reversal of 18740654743 is 34745604781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34745604781 = 3557 ⋅9768233.

It is a cyclic number.

It is not a de Polignac number, because 18740654743 - 2¹ = 18740654741 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 (18740654741) 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, 112895428 + ... + 112895593.

It is an arithmetic number, because the mean of its divisors is an integer number (4741611462).

Almost surely, 2^18740654743 is an apocalyptic number.

18740654743 is a deficient number, since it is larger than the sum of its proper divisors (225791105).

18740654743 is an equidigital number, since it uses as much as digits as its factorization.

18740654743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225791104.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 18740654743 in words is "eighteen billion, seven hundred forty million, six hundred fifty-four thousand, seven hundred forty-three".