98889528961 has 2 divisors, whose sum is σ = 98889528962. Its totient is φ = 98889528960.

The previous prime is 98889528943. The next prime is 98889528977. The reversal of 98889528961 is 16982598889.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84925616400 + 13963912561 = 291420^2 + 118169^2 .

It is a cyclic number.

It is not a de Polignac number, because 98889528961 - 2¹⁷ = 98889397889 is a prime.

It is not a weakly prime, because it can be changed into another prime (98889528901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49444764480 + 49444764481.

It is an arithmetic number, because the mean of its divisors is an integer number (49444764481).

Almost surely, 2^98889528961 is an apocalyptic number.

It is an amenable number.

98889528961 is a deficient number, since it is larger than the sum of its proper divisors (1).

98889528961 is an equidigital number, since it uses as much as digits as its factorization.

98889528961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 179159040, while the sum is 73.

The spelling of 98889528961 in words is "ninety-eight billion, eight hundred eighty-nine million, five hundred twenty-eight thousand, nine hundred sixty-one".