11958028129 has 2 divisors, whose sum is σ = 11958028130. Its totient is φ = 11958028128.

The previous prime is 11958028127. The next prime is 11958028213. The reversal of 11958028129 is 92182085911.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10846805904 + 1111222225 = 104148^2 + 33335^2 .

It is an emirp because it is prime and its reverse (92182085911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11958028129 - 2¹ = 11958028127 is a prime.

Together with 11958028127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11958028127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5979014064 + 5979014065.

It is an arithmetic number, because the mean of its divisors is an integer number (5979014065).

Almost surely, 2^11958028129 is an apocalyptic number.

It is an amenable number.

11958028129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11958028129 is an equidigital number, since it uses as much as digits as its factorization.

11958028129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 46.

The spelling of 11958028129 in words is "eleven billion, nine hundred fifty-eight million, twenty-eight thousand, one hundred twenty-nine".