693274382161 has 3 divisors (see below), whose sum is σ = 693275214793. Its totient is φ = 693273549530.

The previous prime is 693274382147. The next prime is 693274382173. The reversal of 693274382161 is 161283472396.

It is a happy number.

The square root of 693274382161 is 832631.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 693274382161 - 2⁹ = 693274381649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 693274382099 and 693274382108.

It is not an unprimeable number, because it can be changed into a prime (693274332161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 416316 + ... + 1248946.

Almost surely, 2^693274382161 is an apocalyptic number.

693274382161 is the 832631-st square number.

693274382161 is the 416316-th centered octagonal number.

It is an amenable number.

693274382161 is a deficient number, since it is larger than the sum of its proper divisors (832632).

693274382161 is an frugal number, since it uses more digits than its factorization.

693274382161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665262 (or 832631 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The spelling of 693274382161 in words is "six hundred ninety-three billion, two hundred seventy-four million, three hundred eighty-two thousand, one hundred sixty-one".