7801046370889 has 2 divisors, whose sum is σ = 7801046370890. Its totient is φ = 7801046370888.

The previous prime is 7801046370883. The next prime is 7801046370961. The reversal of 7801046370889 is 9880736401087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4132308364864 + 3668738006025 = 2032808^2 + 1915395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7801046370889 is a prime.

It is not a weakly prime, because it can be changed into another prime (7801046370883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3900523185444 + 3900523185445.

It is an arithmetic number, because the mean of its divisors is an integer number (3900523185445).

Almost surely, 2^{7801046370889} is an apocalyptic number.

It is an amenable number.

7801046370889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7801046370889 is an equidigital number, since it uses as much as digits as its factorization.

7801046370889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 7801046370889 in words is "seven trillion, eight hundred one billion, forty-six million, three hundred seventy thousand, eight hundred eighty-nine".