89228181929 has 2 divisors, whose sum is σ = 89228181930. Its totient is φ = 89228181928.

The previous prime is 89228181923. The next prime is 89228181943. The reversal of 89228181929 is 92918182298.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67263459904 + 21964722025 = 259352^2 + 148205^2 .

It is a cyclic number.

It is not a de Polignac number, because 89228181929 - 2¹² = 89228177833 is a prime.

It is a super-2 number, since 2×89228181929² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89228181923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44614090964 + 44614090965.

It is an arithmetic number, because the mean of its divisors is an integer number (44614090965).

Almost surely, 2^89228181929 is an apocalyptic number.

It is an amenable number.

89228181929 is a deficient number, since it is larger than the sum of its proper divisors (1).

89228181929 is an equidigital number, since it uses as much as digits as its factorization.

89228181929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 59.

The spelling of 89228181929 in words is "eighty-nine billion, two hundred twenty-eight million, one hundred eighty-one thousand, nine hundred twenty-nine".