98125308991 has 2 divisors, whose sum is σ = 98125308992. Its totient is φ = 98125308990.

The previous prime is 98125308973. The next prime is 98125309021. The reversal of 98125308991 is 19980352189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98125308991 - 2¹³ = 98125300799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98125308901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49062654495 + 49062654496.

It is an arithmetic number, because the mean of its divisors is an integer number (49062654496).

Almost surely, 2^98125308991 is an apocalyptic number.

98125308991 is a deficient number, since it is larger than the sum of its proper divisors (1).

98125308991 is an equidigital number, since it uses as much as digits as its factorization.

98125308991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The spelling of 98125308991 in words is "ninety-eight billion, one hundred twenty-five million, three hundred eight thousand, nine hundred ninety-one".