18988713005 has 8 divisors (see below), whose sum is σ = 22859725824. Its totient is φ = 15142123600.

The previous prime is 18988712969. The next prime is 18988713013. The reversal of 18988713005 is 50031788981.

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

It is not a de Polignac number, because 18988713005 - 2¹⁴ = 18988696621 is a prime.

It is a super-3 number, since 3×18988713005³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6104141 + ... + 6107250.

It is an arithmetic number, because the mean of its divisors is an integer number (2857465728).

Almost surely, 2^18988713005 is an apocalyptic number.

It is an amenable number.

18988713005 is a deficient number, since it is larger than the sum of its proper divisors (3871012819).

18988713005 is a wasteful number, since it uses less digits than its factorization.

18988713005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12211707.

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 18988713005 in words is "eighteen billion, nine hundred eighty-eight million, seven hundred thirteen thousand, five".