1740364505681 has 2 divisors, whose sum is σ = 1740364505682. Its totient is φ = 1740364505680.

The previous prime is 1740364505653. The next prime is 1740364505699. The reversal of 1740364505681 is 1865054630471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1367543136400 + 372821369281 = 1169420^2 + 610591^2 .

It is a cyclic number.

It is not a de Polignac number, because 1740364505681 - 2⁶ = 1740364505617 is a prime.

It is a super-2 number, since 2×1740364505681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1740364505651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 870182252840 + 870182252841.

It is an arithmetic number, because the mean of its divisors is an integer number (870182252841).

Almost surely, 2^{1740364505681} is an apocalyptic number.

It is an amenable number.

1740364505681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1740364505681 is an equidigital number, since it uses as much as digits as its factorization.

1740364505681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 1740364505681 in words is "one trillion, seven hundred forty billion, three hundred sixty-four million, five hundred five thousand, six hundred eighty-one".