2725726137481 has 2 divisors, whose sum is σ = 2725726137482. Its totient is φ = 2725726137480.

The previous prime is 2725726137401. The next prime is 2725726137493. The reversal of 2725726137481 is 1847316275272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2712144565881 + 13581571600 = 1646859^2 + 116540^2 .

It is a cyclic number.

It is not a de Polignac number, because 2725726137481 - 2²¹ = 2725724040329 is a prime.

It is a super-2 number, since 2×2725726137481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2725726137401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1362863068740 + 1362863068741.

It is an arithmetic number, because the mean of its divisors is an integer number (1362863068741).

Almost surely, 2^{2725726137481} is an apocalyptic number.

It is an amenable number.

2725726137481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2725726137481 is an equidigital number, since it uses as much as digits as its factorization.

2725726137481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7902720, while the sum is 55.

The spelling of 2725726137481 in words is "two trillion, seven hundred twenty-five billion, seven hundred twenty-six million, one hundred thirty-seven thousand, four hundred eighty-one".