85987229429291 has 2 divisors, whose sum is σ = 85987229429292. Its totient is φ = 85987229429290.

The previous prime is 85987229429263. The next prime is 85987229429351. The reversal of 85987229429291 is 19292492278958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85987229429291 - 2¹⁰ = 85987229428267 is a prime.

It is not a weakly prime, because it can be changed into another prime (85987229429191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42993614714645 + 42993614714646.

It is an arithmetic number, because the mean of its divisors is an integer number (42993614714646).

Almost surely, 2^{85987229429291} is an apocalyptic number.

85987229429291 is a deficient number, since it is larger than the sum of its proper divisors (1).

85987229429291 is an equidigital number, since it uses as much as digits as its factorization.

85987229429291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940584960, while the sum is 77.

The spelling of 85987229429291 in words is "eighty-five trillion, nine hundred eighty-seven billion, two hundred twenty-nine million, four hundred twenty-nine thousand, two hundred ninety-one".