89779379317 has 2 divisors, whose sum is σ = 89779379318. Its totient is φ = 89779379316.

The previous prime is 89779379311. The next prime is 89779379357. The reversal of 89779379317 is 71397397798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89445257476 + 334121841 = 299074^2 + 18279^2 .

It is a cyclic number.

It is not a de Polignac number, because 89779379317 - 2¹⁹ = 89778855029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89779379311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44889689658 + 44889689659.

It is an arithmetic number, because the mean of its divisors is an integer number (44889689659).

Almost surely, 2^89779379317 is an apocalyptic number.

It is an amenable number.

89779379317 is a deficient number, since it is larger than the sum of its proper divisors (1).

89779379317 is an equidigital number, since it uses as much as digits as its factorization.

89779379317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126023688, while the sum is 70.

The spelling of 89779379317 in words is "eighty-nine billion, seven hundred seventy-nine million, three hundred seventy-nine thousand, three hundred seventeen".