98118744991 has 2 divisors, whose sum is σ = 98118744992. Its totient is φ = 98118744990.

The previous prime is 98118744973. The next prime is 98118745013. The reversal of 98118744991 is 19944781189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98118744991 - 2⁵ = 98118744959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98118741991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49059372495 + 49059372496.

It is an arithmetic number, because the mean of its divisors is an integer number (49059372496).

Almost surely, 2^98118744991 is an apocalyptic number.

98118744991 is a deficient number, since it is larger than the sum of its proper divisors (1).

98118744991 is an equidigital number, since it uses as much as digits as its factorization.

98118744991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 61.

The spelling of 98118744991 in words is "ninety-eight billion, one hundred eighteen million, seven hundred forty-four thousand, nine hundred ninety-one".