7281788251043 has 2 divisors, whose sum is σ = 7281788251044. Its totient is φ = 7281788251042.

The previous prime is 7281788250991. The next prime is 7281788251181. The reversal of 7281788251043 is 3401528871827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7281788251043 - 2¹⁰ = 7281788250019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7281788251043.

It is not a weakly prime, because it can be changed into another prime (7281788281043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3640894125521 + 3640894125522.

It is an arithmetic number, because the mean of its divisors is an integer number (3640894125522).

Almost surely, 2^{7281788251043} is an apocalyptic number.

7281788251043 is a deficient number, since it is larger than the sum of its proper divisors (1).

7281788251043 is an equidigital number, since it uses as much as digits as its factorization.

7281788251043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 7281788251043 in words is "seven trillion, two hundred eighty-one billion, seven hundred eighty-eight million, two hundred fifty-one thousand, forty-three".