18711077905719 has 20 divisors (see below), whose sum is σ = 28852765296960. Its totient is φ = 12071663163360.

The previous prime is 18711077905711. The next prime is 18711077905733. The reversal of 18711077905719 is 91750977011781.

It is not a de Polignac number, because 18711077905719 - 2³ = 18711077905711 is a prime.

It is a super-2 number, since 2×18711077905719² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18711077905711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3725819454 + ... + 3725824475.

It is an arithmetic number, because the mean of its divisors is an integer number (1442638264848).

Almost surely, 2^{18711077905719} is an apocalyptic number.

18711077905719 is a deficient number, since it is larger than the sum of its proper divisors (10141687391241).

18711077905719 is an equidigital number, since it uses as much as digits as its factorization.

18711077905719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7451643972 (or 7451643963 counting only the distinct ones).

The product of its (nonzero) digits is 7779240, while the sum is 63.

The spelling of 18711077905719 in words is "eighteen trillion, seven hundred eleven billion, seventy-seven million, nine hundred five thousand, seven hundred nineteen".