185080509913 has 16 divisors (see below), whose sum is σ = 201173628096. Its totient is φ = 169259181120.

The previous prime is 185080509869. The next prime is 185080509917. The reversal of 185080509913 is 319905080581.

It is a cyclic number.

It is not a de Polignac number, because 185080509913 - 2¹³ = 185080501721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (185080509917) 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, 533958 + ... + 809488.

It is an arithmetic number, because the mean of its divisors is an integer number (12573351756).

Almost surely, 2^185080509913 is an apocalyptic number.

185080509913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

185080509913 is a deficient number, since it is larger than the sum of its proper divisors (16093118183).

185080509913 is a wasteful number, since it uses less digits than its factorization.

185080509913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276024.

The product of its (nonzero) digits is 388800, while the sum is 49.

The spelling of 185080509913 in words is "one hundred eighty-five billion, eighty million, five hundred nine thousand, nine hundred thirteen".