2643130573729 has 2 divisors, whose sum is σ = 2643130573730. Its totient is φ = 2643130573728.

The previous prime is 2643130573723. The next prime is 2643130573751. The reversal of 2643130573729 is 9273750313462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2219349103504 + 423781470225 = 1489748^2 + 650985^2 .

It is a cyclic number.

It is not a de Polignac number, because 2643130573729 - 2¹⁵ = 2643130540961 is a prime.

It is a super-2 number, since 2×2643130573729² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2643130573723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321565286864 + 1321565286865.

It is an arithmetic number, because the mean of its divisors is an integer number (1321565286865).

Almost surely, 2^{2643130573729} is an apocalyptic number.

It is an amenable number.

2643130573729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643130573729 is an equidigital number, since it uses as much as digits as its factorization.

2643130573729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 52.

The spelling of 2643130573729 in words is "two trillion, six hundred forty-three billion, one hundred thirty million, five hundred seventy-three thousand, seven hundred twenty-nine".