18514772719 has 2 divisors, whose sum is σ = 18514772720. Its totient is φ = 18514772718.

The previous prime is 18514772707. The next prime is 18514772767. The reversal of 18514772719 is 91727741581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18514772719 - 2¹⁵ = 18514739951 is a prime.

It is a super-2 number, since 2×18514772719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18514772779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9257386359 + 9257386360.

It is an arithmetic number, because the mean of its divisors is an integer number (9257386360).

Almost surely, 2^18514772719 is an apocalyptic number.

18514772719 is a deficient number, since it is larger than the sum of its proper divisors (1).

18514772719 is an equidigital number, since it uses as much as digits as its factorization.

18514772719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 52.

The spelling of 18514772719 in words is "eighteen billion, five hundred fourteen million, seven hundred seventy-two thousand, seven hundred nineteen".