193695943365961 has 9 divisors (see below), whose sum is σ = 193898361408493. Its totient is φ = 193493736458860.

The previous prime is 193695943365917. The next prime is 193695943366031. The reversal of 193695943365961 is 169563349596391.

The square root of 193695943365961 is 13917469.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 193695943365961 - 2⁷ = 193695943365833 is a prime.

It is a super-2 number, since 2×193695943365961² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193695943369961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14348903790 + ... + 14348917288.

Almost surely, 2^{193695943365961} is an apocalyptic number.

193695943365961 is the 13917469-th square number.

193695943365961 is the 6958735-th centered octagonal number.

It is an amenable number.

193695943365961 is a deficient number, since it is larger than the sum of its proper divisors (202418042532).

193695943365961 is an frugal number, since it uses more digits than its factorization.

193695943365961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29060 (or 14530 counting only the distinct ones).

The product of its digits is 3826375200, while the sum is 79.

The spelling of 193695943365961 in words is "one hundred ninety-three trillion, six hundred ninety-five billion, nine hundred forty-three million, three hundred sixty-five thousand, nine hundred sixty-one".