988490939680 has 48 divisors (see below), whose sum is σ = 2335372542720. Its totient is φ = 395385760512.

The previous prime is 988490939669. The next prime is 988490939699. The reversal of 988490939680 is 86939094889.

It is a super-2 number, since 2×988490939680² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8981947 + ... + 9091333.

It is an arithmetic number, because the mean of its divisors is an integer number (48653594640).

Almost surely, 2^988490939680 is an apocalyptic number.

It is an amenable number.

988490939680 is an abundant number, since it is smaller than the sum of its proper divisors (1346881603040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

988490939680 is a wasteful number, since it uses less digits than its factorization.

988490939680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165881 (or 165873 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 73.

The spelling of 988490939680 in words is "nine hundred eighty-eight billion, four hundred ninety million, nine hundred thirty-nine thousand, six hundred eighty".