98943531601 has 2 divisors, whose sum is σ = 98943531602. Its totient is φ = 98943531600.

The previous prime is 98943531569. The next prime is 98943531619. The reversal of 98943531601 is 10613534989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74175067201 + 24768464400 = 272351^2 + 157380^2 .

It is a cyclic number.

It is not a de Polignac number, because 98943531601 - 2⁵ = 98943531569 is a prime.

It is not a weakly prime, because it can be changed into another prime (98943531671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49471765800 + 49471765801.

It is an arithmetic number, because the mean of its divisors is an integer number (49471765801).

Almost surely, 2^98943531601 is an apocalyptic number.

It is an amenable number.

98943531601 is a deficient number, since it is larger than the sum of its proper divisors (1).

98943531601 is an equidigital number, since it uses as much as digits as its factorization.

98943531601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 98943531601 in words is "ninety-eight billion, nine hundred forty-three million, five hundred thirty-one thousand, six hundred one".