18962989741 has 2 divisors, whose sum is σ = 18962989742. Its totient is φ = 18962989740.

The previous prime is 18962989739. The next prime is 18962989763. The reversal of 18962989741 is 14798926981.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18556160841 + 406828900 = 136221^2 + 20170^2 .

It is an emirp because it is prime and its reverse (14798926981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18962989741 - 2¹ = 18962989739 is a prime.

It is a super-3 number, since 3×18962989741³ (a number of 32 digits) contains 333 as substring.

Together with 18962989739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18962989781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9481494870 + 9481494871.

It is an arithmetic number, because the mean of its divisors is an integer number (9481494871).

Almost surely, 2^18962989741 is an apocalyptic number.

It is an amenable number.

18962989741 is a deficient number, since it is larger than the sum of its proper divisors (1).

18962989741 is an equidigital number, since it uses as much as digits as its factorization.

18962989741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 64.

The spelling of 18962989741 in words is "eighteen billion, nine hundred sixty-two million, nine hundred eighty-nine thousand, seven hundred forty-one".