7798011853 has 2 divisors, whose sum is σ = 7798011854. Its totient is φ = 7798011852.

The previous prime is 7798011841. The next prime is 7798011883. The reversal of 7798011853 is 3581108977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5239877769 + 2558134084 = 72387^2 + 50578^2 .

It is an emirp because it is prime and its reverse (3581108977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7798011853 - 2⁵ = 7798011821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7798011797 and 7798011806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7798011883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899005926 + 3899005927.

It is an arithmetic number, because the mean of its divisors is an integer number (3899005927).

Almost surely, 2^7798011853 is an apocalyptic number.

It is an amenable number.

7798011853 is a deficient number, since it is larger than the sum of its proper divisors (1).

7798011853 is an equidigital number, since it uses as much as digits as its factorization.

7798011853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 49.

The square root of 7798011853 is about 88306.3522800031. The cubic root of 7798011853 is about 1983.0239692947.

The spelling of 7798011853 in words is "seven billion, seven hundred ninety-eight million, eleven thousand, eight hundred fifty-three".