18501683349 has 16 divisors (see below), whose sum is σ = 25526952000. Its totient is φ = 11905681536.

The previous prime is 18501683311. The next prime is 18501683353. The reversal of 18501683349 is 94338610581.

It is not a de Polignac number, because 18501683349 - 2¹⁵ = 18501650581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18501683298 and 18501683307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18501683149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290602 + ... + 348500.

It is an arithmetic number, because the mean of its divisors is an integer number (1595434500).

Almost surely, 2^18501683349 is an apocalyptic number.

It is an amenable number.

18501683349 is a deficient number, since it is larger than the sum of its proper divisors (7025268651).

18501683349 is a wasteful number, since it uses less digits than its factorization.

18501683349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61604.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 18501683349 in words is "eighteen billion, five hundred one million, six hundred eighty-three thousand, three hundred forty-nine".