98378566361 has 2 divisors, whose sum is σ = 98378566362. Its totient is φ = 98378566360.

The previous prime is 98378566343. The next prime is 98378566367. The reversal of 98378566361 is 16366587389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94172265625 + 4206300736 = 306875^2 + 64856^2 .

It is a cyclic number.

It is not a de Polignac number, because 98378566361 - 2¹⁸ = 98378304217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98378566294 and 98378566303.

It is not a weakly prime, because it can be changed into another prime (98378566367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49189283180 + 49189283181.

It is an arithmetic number, because the mean of its divisors is an integer number (49189283181).

Almost surely, 2^98378566361 is an apocalyptic number.

It is an amenable number.

98378566361 is a deficient number, since it is larger than the sum of its proper divisors (1).

98378566361 is an equidigital number, since it uses as much as digits as its factorization.

98378566361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 62.

The spelling of 98378566361 in words is "ninety-eight billion, three hundred seventy-eight million, five hundred sixty-six thousand, three hundred sixty-one".