9959042029 has 2 divisors, whose sum is σ = 9959042030. Its totient is φ = 9959042028.

The previous prime is 9959041993. The next prime is 9959042039. The reversal of 9959042029 is 9202409599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9959042025 + 4 = 99795^2 + 2^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9959042029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9959042039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4979521014 + 4979521015.

It is an arithmetic number, because the mean of its divisors is an integer number (4979521015).

Almost surely, 2^9959042029 is an apocalyptic number.

It is an amenable number.

9959042029 is a deficient number, since it is larger than the sum of its proper divisors (1).

9959042029 is an equidigital number, since it uses as much as digits as its factorization.

9959042029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 9959042029 is about 99795.0000200411. Note that the first 4 decimals coincide. The cubic root of 9959042029 is about 2151.4892893246.

The spelling of 9959042029 in words is "nine billion, nine hundred fifty-nine million, forty-two thousand, twenty-nine".