18980011193 has 8 divisors (see below), whose sum is σ = 22298195136. Its totient is φ = 15927282000.

The previous prime is 18980011181. The next prime is 18980011231. The reversal of 18980011193 is 39111008981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18980011193 - 2¹⁰ = 18980010169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18980011193.

It is not an unprimeable number, because it can be changed into a prime (18980011123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66363533 + ... + 66363818.

It is an arithmetic number, because the mean of its divisors is an integer number (2787274392).

Almost surely, 2^18980011193 is an apocalyptic number.

18980011193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18980011193 is a deficient number, since it is larger than the sum of its proper divisors (3318183943).

18980011193 is a wasteful number, since it uses less digits than its factorization.

18980011193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132727375.

The product of its (nonzero) digits is 15552, while the sum is 41.

The spelling of 18980011193 in words is "eighteen billion, nine hundred eighty million, eleven thousand, one hundred ninety-three".