988784999959 has 8 divisors (see below), whose sum is σ = 1049682378240. Its totient is φ = 928191350016.

The previous prime is 988784999837. The next prime is 988785000037. The reversal of 988784999959 is 959999487889.

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 988784999959 - 2¹⁷ = 988784868887 is a prime.

It is a super-2 number, since 2×988784999959² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988784999159) 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, 75925374 + ... + 75938395.

It is an arithmetic number, because the mean of its divisors is an integer number (131210297280).

Almost surely, 2^988784999959 is an apocalyptic number.

988784999959 is a deficient number, since it is larger than the sum of its proper divisors (60897378281).

988784999959 is a wasteful number, since it uses less digits than its factorization.

988784999959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151864169.

The product of its digits is 38093690880, while the sum is 94.

The spelling of 988784999959 in words is "nine hundred eighty-eight billion, seven hundred eighty-four million, nine hundred ninety-nine thousand, nine hundred fifty-nine".