9840788039 has 2 divisors, whose sum is σ = 9840788040. Its totient is φ = 9840788038.

The previous prime is 9840788033. The next prime is 9840788053. The reversal of 9840788039 is 9308870489.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9840788039 is a prime.

It is a super-2 number, since 2×9840788039² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9840788033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920394019 + 4920394020.

It is an arithmetic number, because the mean of its divisors is an integer number (4920394020).

Almost surely, 2^9840788039 is an apocalyptic number.

9840788039 is a deficient number, since it is larger than the sum of its proper divisors (1).

9840788039 is an equidigital number, since it uses as much as digits as its factorization.

9840788039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 9840788039 is about 99200.7461615083. The cubic root of 9840788039 is about 2142.9397422927.

The spelling of 9840788039 in words is "nine billion, eight hundred forty million, seven hundred eighty-eight thousand, thirty-nine".