2731103250989 has 2 divisors, whose sum is σ = 2731103250990. Its totient is φ = 2731103250988.

The previous prime is 2731103250983. The next prime is 2731103251033. The reversal of 2731103250989 is 9890523011372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1581726282889 + 1149376968100 = 1257667^2 + 1072090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2731103250989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731103250983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365551625494 + 1365551625495.

It is an arithmetic number, because the mean of its divisors is an integer number (1365551625495).

Almost surely, 2^{2731103250989} is an apocalyptic number.

It is an amenable number.

2731103250989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731103250989 is an equidigital number, since it uses as much as digits as its factorization.

2731103250989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 2731103250989 in words is "two trillion, seven hundred thirty-one billion, one hundred three million, two hundred fifty thousand, nine hundred eighty-nine".