18962989743 has 4 divisors (see below), whose sum is σ = 25283986328. Its totient is φ = 12641993160.

The previous prime is 18962989741. The next prime is 18962989763. The reversal of 18962989743 is 34798926981.

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

It is not a de Polignac number, because 18962989743 - 2¹ = 18962989741 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 (18962989741) 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, 3160498288 + ... + 3160498293.

It is an arithmetic number, because the mean of its divisors is an integer number (6320996582).

Almost surely, 2^18962989743 is an apocalyptic number.

18962989743 is a deficient number, since it is larger than the sum of its proper divisors (6320996585).

18962989743 is an equidigital number, since it uses as much as digits as its factorization.

18962989743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6320996584.

The product of its digits is 47029248, while the sum is 66.

The spelling of 18962989743 in words is "eighteen billion, nine hundred sixty-two million, nine hundred eighty-nine thousand, seven hundred forty-three".