573744136681 has 9 divisors (see below), whose sum is σ = 599792328919. Its totient is φ = 548782075336.

The previous prime is 573744136663. The next prime is 573744136699. The reversal of 573744136681 is 186631447375.

The square root of 573744136681 is 757459.

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

It is an interprime number because it is at equal distance from previous prime (573744136663) and next prime (573744136699).

It can be written as a sum of positive squares in only one way, i.e., 28928907225 + 544815229456 = 170085^2 + 738116^2 .

It is not a de Polignac number, because 573744136681 - 2³⁹ = 23988322793 is a prime.

It is a super-2 number, since 2×573744136681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573744136621) 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, 17405091 + ... + 17438023.

Almost surely, 2^573744136681 is an apocalyptic number.

573744136681 is the 757459-th square number.

573744136681 is the 378730-th centered octagonal number.

It is an amenable number.

573744136681 is a deficient number, since it is larger than the sum of its proper divisors (26048192238).

573744136681 is an frugal number, since it uses more digits than its factorization.

573744136681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65912 (or 32956 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The spelling of 573744136681 in words is "five hundred seventy-three billion, seven hundred forty-four million, one hundred thirty-six thousand, six hundred eighty-one".