18434990814 has 16 divisors (see below), whose sum is σ = 36952102800. Its totient is φ = 6131310080.

The previous prime is 18434990807. The next prime is 18434990857. The reversal of 18434990814 is 41809943481.

It is a super-3 number, since 3×18434990814³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3418797 + ... + 3424184.

It is an arithmetic number, because the mean of its divisors is an integer number (2309506425).

Almost surely, 2^18434990814 is an apocalyptic number.

18434990814 is an abundant number, since it is smaller than the sum of its proper divisors (18517111986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18434990814 is a wasteful number, since it uses less digits than its factorization.

18434990814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843435.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 18434990814 in words is "eighteen billion, four hundred thirty-four million, nine hundred ninety thousand, eight hundred fourteen".