89281606819 has 2 divisors, whose sum is σ = 89281606820. Its totient is φ = 89281606818.

The previous prime is 89281606783. The next prime is 89281606849. The reversal of 89281606819 is 91860618298.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89281606819 - 2²¹ = 89279509667 is a prime.

It is a super-2 number, since 2×89281606819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89281606849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44640803409 + 44640803410.

It is an arithmetic number, because the mean of its divisors is an integer number (44640803410).

Almost surely, 2^89281606819 is an apocalyptic number.

89281606819 is a deficient number, since it is larger than the sum of its proper divisors (1).

89281606819 is an equidigital number, since it uses as much as digits as its factorization.

89281606819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 58.

The spelling of 89281606819 in words is "eighty-nine billion, two hundred eighty-one million, six hundred six thousand, eight hundred nineteen".