18713169454 has 16 divisors (see below), whose sum is σ = 32116912128. Its totient is φ = 8010631512.

The previous prime is 18713169443. The next prime is 18713169463. The reversal of 18713169454 is 45496131781.

It is a super-2 number, since 2×18713169454² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18713169398 and 18713169407.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 762342 + ... + 786505.

It is an arithmetic number, because the mean of its divisors is an integer number (2007307008).

Almost surely, 2^18713169454 is an apocalyptic number.

18713169454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18713169454 is a deficient number, since it is larger than the sum of its proper divisors (13403742674).

18713169454 is a wasteful number, since it uses less digits than its factorization.

18713169454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549719.

The product of its digits is 725760, while the sum is 49.

It can be divided in two parts, 187 and 13169454, that added together give a square (13169641 = 3629²).

The spelling of 18713169454 in words is "eighteen billion, seven hundred thirteen million, one hundred sixty-nine thousand, four hundred fifty-four".