5693897943721 has 27 divisors (see below), whose sum is σ = 6207277402767. Its totient is φ = 5220599741760.

The previous prime is 5693897943689. The next prime is 5693897943757. The reversal of 5693897943721 is 1273497983965.

The square root of 5693897943721 is 2386189.

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

It can be written as a sum of positive squares in 13 ways, for example, as 1478021316121 + 4215876627600 = 1215739^2 + 2053260^2 .

It is not a de Polignac number, because 5693897943721 - 2⁵ = 5693897943689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5693897943761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5366538531 + ... + 5366539591.

Almost surely, 2^{5693897943721} is an apocalyptic number.

5693897943721 is the 2386189-th square number.

5693897943721 is the 1193095-th centered octagonal number.

It is an amenable number.

5693897943721 is a deficient number, since it is larger than the sum of its proper divisors (513379459046).

5693897943721 is an frugal number, since it uses more digits than its factorization.

5693897943721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 1247 counting only the distinct ones).

The product of its digits is 617258880, while the sum is 73.

The spelling of 5693897943721 in words is "five trillion, six hundred ninety-three billion, eight hundred ninety-seven million, nine hundred forty-three thousand, seven hundred twenty-one".