98478792493 has 2 divisors, whose sum is σ = 98478792494. Its totient is φ = 98478792492.

The previous prime is 98478792487. The next prime is 98478792497. The reversal of 98478792493 is 39429787489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51509933764 + 46968858729 = 226958^2 + 216723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98478792493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98478792497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49239396246 + 49239396247.

It is an arithmetic number, because the mean of its divisors is an integer number (49239396247).

Almost surely, 2^98478792493 is an apocalyptic number.

It is an amenable number.

98478792493 is a deficient number, since it is larger than the sum of its proper divisors (1).

98478792493 is an equidigital number, since it uses as much as digits as its factorization.

98478792493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 70.

The spelling of 98478792493 in words is "ninety-eight billion, four hundred seventy-eight million, seven hundred ninety-two thousand, four hundred ninety-three".