993680880968 has 16 divisors (see below), whose sum is σ = 1908594375660. Its totient is φ = 484722380800.

The previous prime is 993680880967. The next prime is 993680880979. The reversal of 993680880968 is 869088086399.

It can be written as a sum of positive squares in 2 ways, for example, as 637030652164 + 356650228804 = 798142^2 + 597202^2 .

It is a junction number, because it is equal to n+sod(n) for n = 993680880895 and 993680880904.

It is not an unprimeable number, because it can be changed into a prime (993680880967) 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, 1514757113 + ... + 1514757768.

Almost surely, 2^993680880968 is an apocalyptic number.

It is an amenable number.

993680880968 is a deficient number, since it is larger than the sum of its proper divisors (914913494692).

993680880968 is a wasteful number, since it uses less digits than its factorization.

993680880968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029514928 (or 3029514924 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 74.

The spelling of 993680880968 in words is "nine hundred ninety-three billion, six hundred eighty million, eight hundred eighty thousand, nine hundred sixty-eight".