98040971573 has 2 divisors, whose sum is σ = 98040971574. Its totient is φ = 98040971572.

The previous prime is 98040971543. The next prime is 98040971629. The reversal of 98040971573 is 37517904089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83317090609 + 14723880964 = 288647^2 + 121342^2 .

It is a cyclic number.

It is not a de Polignac number, because 98040971573 - 2¹⁴ = 98040955189 is a prime.

It is a super-2 number, since 2×98040971573² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98040971513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49020485786 + 49020485787.

It is an arithmetic number, because the mean of its divisors is an integer number (49020485787).

Almost surely, 2^98040971573 is an apocalyptic number.

It is an amenable number.

98040971573 is a deficient number, since it is larger than the sum of its proper divisors (1).

98040971573 is an equidigital number, since it uses as much as digits as its factorization.

98040971573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 98040971573 in words is "ninety-eight billion, forty million, nine hundred seventy-one thousand, five hundred seventy-three".