89129530277 has 2 divisors, whose sum is σ = 89129530278. Its totient is φ = 89129530276.

The previous prime is 89129530267. The next prime is 89129530307. The reversal of 89129530277 is 77203592198.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86671948801 + 2457581476 = 294401^2 + 49574^2 .

It is a cyclic number.

It is not a de Polignac number, because 89129530277 - 2⁴ = 89129530261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89129530267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44564765138 + 44564765139.

It is an arithmetic number, because the mean of its divisors is an integer number (44564765139).

Almost surely, 2^89129530277 is an apocalyptic number.

It is an amenable number.

89129530277 is a deficient number, since it is larger than the sum of its proper divisors (1).

89129530277 is an equidigital number, since it uses as much as digits as its factorization.

89129530277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 89129530277 in words is "eighty-nine billion, one hundred twenty-nine million, five hundred thirty thousand, two hundred seventy-seven".