7788069013 has 2 divisors, whose sum is σ = 7788069014. Its totient is φ = 7788069012.

The previous prime is 7788069007. The next prime is 7788069083. The reversal of 7788069013 is 3109608877.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7503370884 + 284698129 = 86622^2 + 16873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7788069013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7788069083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3894034506 + 3894034507.

It is an arithmetic number, because the mean of its divisors is an integer number (3894034507).

Almost surely, 2^7788069013 is an apocalyptic number.

It is an amenable number.

7788069013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7788069013 is an equidigital number, since it uses as much as digits as its factorization.

7788069013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 7788069013 is about 88250.0369008421. The cubic root of 7788069013 is about 1982.1807938653.

The spelling of 7788069013 in words is "seven billion, seven hundred eighty-eight million, sixty-nine thousand, thirteen".