988638514033 has 4 divisors (see below), whose sum is σ = 988640682148. Its totient is φ = 988636345920.

The previous prime is 988638514021. The next prime is 988638514063. The reversal of 988638514033 is 330415836889.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330415836889 = 3251 ⋅101635139.

It can be written as a sum of positive squares in 2 ways, for example, as 230734201104 + 757904312929 = 480348^2 + 870577^2 .

It is a cyclic number.

It is not a de Polignac number, because 988638514033 - 2¹⁷ = 988638382961 is a prime.

It is a super-2 number, since 2×988638514033² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988638514063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105828 + ... + 1410133.

It is an arithmetic number, because the mean of its divisors is an integer number (247160170537).

Almost surely, 2^988638514033 is an apocalyptic number.

It is an amenable number.

988638514033 is a deficient number, since it is larger than the sum of its proper divisors (2168115).

988638514033 is a wasteful number, since it uses less digits than its factorization.

988638514033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168114.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 988638514033 in words is "nine hundred eighty-eight billion, six hundred thirty-eight million, five hundred fourteen thousand, thirty-three".