193486785968 has 40 divisors (see below), whose sum is σ = 433596914688. Its totient is φ = 81923833152.

The previous prime is 193486785967. The next prime is 193486785977. The reversal of 193486785968 is 869587684391.

It is a junction number, because it is equal to n+sod(n) for n = 193486785895 and 193486785904.

It is not an unprimeable number, because it can be changed into a prime (193486785967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10397696 + ... + 10416287.

Almost surely, 2^193486785968 is an apocalyptic number.

It is an amenable number.

193486785968 is an abundant number, since it is smaller than the sum of its proper divisors (240110128720).

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

193486785968 is a wasteful number, since it uses less digits than its factorization.

193486785968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20814081 (or 20814075 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 74.

The spelling of 193486785968 in words is "one hundred ninety-three billion, four hundred eighty-six million, seven hundred eighty-five thousand, nine hundred sixty-eight".