2732306442781 has 2 divisors, whose sum is σ = 2732306442782. Its totient is φ = 2732306442780.

The previous prime is 2732306442611. The next prime is 2732306442791. The reversal of 2732306442781 is 1872446032372.

2732306442781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1457983800900 + 1274322641881 = 1207470^2 + 1128859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2732306442781 is a prime.

It is a super-2 number, since 2×2732306442781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2732306442791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366153221390 + 1366153221391.

It is an arithmetic number, because the mean of its divisors is an integer number (1366153221391).

Almost surely, 2^{2732306442781} is an apocalyptic number.

It is an amenable number.

2732306442781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2732306442781 is an equidigital number, since it uses as much as digits as its factorization.

2732306442781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 49.

The spelling of 2732306442781 in words is "two trillion, seven hundred thirty-two billion, three hundred six million, four hundred forty-two thousand, seven hundred eighty-one".