993538000988 has 96 divisors (see below), whose sum is σ = 1949765664000. Its totient is φ = 440086265856.

The previous prime is 993538000981. The next prime is 993538001033. The reversal of 993538000988 is 889000835399.

It is a happy number.

It is a super-2 number, since 2×993538000988² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 993538000988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993538000981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25821188 + ... + 25859636.

It is an arithmetic number, because the mean of its divisors is an integer number (20310059000).

Almost surely, 2^993538000988 is an apocalyptic number.

It is an amenable number.

993538000988 is a deficient number, since it is larger than the sum of its proper divisors (956227663012).

993538000988 is a wasteful number, since it uses less digits than its factorization.

993538000988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38719 (or 38717 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 993538000988 in words is "nine hundred ninety-three billion, five hundred thirty-eight million, nine hundred eighty-eight", and thus it is an aban number.