18741057439 has 12 divisors (see below), whose sum is σ = 20299515096. Its totient is φ = 17294370912.

The previous prime is 18741057437. The next prime is 18741057497. The reversal of 18741057439 is 93475014781.

It is not a de Polignac number, because 18741057439 - 2¹ = 18741057437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18741057392 and 18741057401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18741057437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640912 + ... + 669514.

It is an arithmetic number, because the mean of its divisors is an integer number (1691626258).

Almost surely, 2^18741057439 is an apocalyptic number.

18741057439 is a deficient number, since it is larger than the sum of its proper divisors (1558457657).

18741057439 is a wasteful number, since it uses less digits than its factorization.

18741057439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32506 (or 32493 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 18741057439 in words is "eighteen billion, seven hundred forty-one million, fifty-seven thousand, four hundred thirty-nine".