18996514741 has 2 divisors, whose sum is σ = 18996514742. Its totient is φ = 18996514740.

The previous prime is 18996514721. The next prime is 18996514763. The reversal of 18996514741 is 14741569981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18426976516 + 569538225 = 135746^2 + 23865^2 .

It is an emirp because it is prime and its reverse (14741569981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18996514741 - 2³¹ = 16849031093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18996514721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9498257370 + 9498257371.

It is an arithmetic number, because the mean of its divisors is an integer number (9498257371).

Almost surely, 2^18996514741 is an apocalyptic number.

It is an amenable number.

18996514741 is a deficient number, since it is larger than the sum of its proper divisors (1).

18996514741 is an equidigital number, since it uses as much as digits as its factorization.

18996514741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 55.

The spelling of 18996514741 in words is "eighteen billion, nine hundred ninety-six million, five hundred fourteen thousand, seven hundred forty-one".