988143529091 has 2 divisors, whose sum is σ = 988143529092. Its totient is φ = 988143529090.

The previous prime is 988143529081. The next prime is 988143529117. The reversal of 988143529091 is 190925341889.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988143529091 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 988143529091.

It is not a weakly prime, because it can be changed into another prime (988143529081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494071764545 + 494071764546.

It is an arithmetic number, because the mean of its divisors is an integer number (494071764546).

Almost surely, 2^988143529091 is an apocalyptic number.

988143529091 is a deficient number, since it is larger than the sum of its proper divisors (1).

988143529091 is an equidigital number, since it uses as much as digits as its factorization.

988143529091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The spelling of 988143529091 in words is "nine hundred eighty-eight billion, one hundred forty-three million, five hundred twenty-nine thousand, ninety-one".