193196861793 has 24 divisors (see below), whose sum is σ = 302306757480. Its totient is φ = 118890364320.

The previous prime is 193196861731. The next prime is 193196861797. The reversal of 193196861793 is 397168691391.

193196861793 is a `hidden beast` number, since 1 + 9 + 3 + 1 + 9 + 6 + 8 + 617 + 9 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 56495109969 + 136701751824 = 237687^2 + 369732^2 .

It is not a de Polignac number, because 193196861793 - 2¹⁴ = 193196845409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 193196861793.

It is not an unprimeable number, because it can be changed into a prime (193196861797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4865598 + ... + 4905143.

It is an arithmetic number, because the mean of its divisors is an integer number (12596114895).

Almost surely, 2^193196861793 is an apocalyptic number.

193196861793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

193196861793 is a deficient number, since it is larger than the sum of its proper divisors (109109895687).

193196861793 is an equidigital number, since it uses as much as digits as its factorization.

193196861793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770786 (or 9770757 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 63.

The spelling of 193196861793 in words is "one hundred ninety-three billion, one hundred ninety-six million, eight hundred sixty-one thousand, seven hundred ninety-three".