18413654090 has 16 divisors (see below), whose sum is σ = 35694160488. Its totient is φ = 6798887616.

The previous prime is 18413654087. The next prime is 18413654117. The reversal of 18413654090 is 9045631481.

It can be written as a sum of positive squares in 4 ways, for example, as 11136369841 + 7277284249 = 105529^2 + 85307^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70821617 + ... + 70821876.

Almost surely, 2^18413654090 is an apocalyptic number.

18413654090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18413654090 is a deficient number, since it is larger than the sum of its proper divisors (17280506398).

18413654090 is a wasteful number, since it uses less digits than its factorization.

18413654090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141643513.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 18413654090 in words is "eighteen billion, four hundred thirteen million, six hundred fifty-four thousand, ninety".