98889523961 has 2 divisors, whose sum is σ = 98889523962. Its totient is φ = 98889523960.

The previous prime is 98889523927. The next prime is 98889523973. The reversal of 98889523961 is 16932598889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74722956025 + 24166567936 = 273355^2 + 155456^2 .

It is a cyclic number.

It is not a de Polignac number, because 98889523961 - 2³⁰ = 97815782137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98889523891 and 98889523900.

It is not a weakly prime, because it can be changed into another prime (98889528961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49444761980 + 49444761981.

It is an arithmetic number, because the mean of its divisors is an integer number (49444761981).

Almost surely, 2^98889523961 is an apocalyptic number.

It is an amenable number.

98889523961 is a deficient number, since it is larger than the sum of its proper divisors (1).

98889523961 is an equidigital number, since it uses as much as digits as its factorization.

98889523961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67184640, while the sum is 68.

The spelling of 98889523961 in words is "ninety-eight billion, eight hundred eighty-nine million, five hundred twenty-three thousand, nine hundred sixty-one".