18677905414 has 16 divisors (see below), whose sum is σ = 32457888288. Its totient is φ = 7895161152.

The previous prime is 18677905397. The next prime is 18677905417. The reversal of 18677905414 is 41450977681.

It is a happy number.

It is a super-2 number, since 2×18677905414² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18677905417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9136897 + ... + 9138940.

It is an arithmetic number, because the mean of its divisors is an integer number (2028618018).

Almost surely, 2^18677905414 is an apocalyptic number.

18677905414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18677905414 is a deficient number, since it is larger than the sum of its proper divisors (13779982874).

18677905414 is a wasteful number, since it uses less digits than its factorization.

18677905414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18275919.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 18677905414 in words is "eighteen billion, six hundred seventy-seven million, nine hundred five thousand, four hundred fourteen".