86472779852177 has 2 divisors, whose sum is σ = 86472779852178. Its totient is φ = 86472779852176.

The previous prime is 86472779852171. The next prime is 86472779852233. The reversal of 86472779852177 is 77125897727468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43573214202001 + 42899565650176 = 6601001^2 + 6549776^2 .

It is a cyclic number.

It is not a de Polignac number, because 86472779852177 - 2²⁴ = 86472763074961 is a prime.

It is not a weakly prime, because it can be changed into another prime (86472779852171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43236389926088 + 43236389926089.

It is an arithmetic number, because the mean of its divisors is an integer number (43236389926089).

Almost surely, 2^{86472779852177} is an apocalyptic number.

It is an amenable number.

86472779852177 is a deficient number, since it is larger than the sum of its proper divisors (1).

86472779852177 is an equidigital number, since it uses as much as digits as its factorization.

86472779852177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4646799360, while the sum is 80.

The spelling of 86472779852177 in words is "eighty-six trillion, four hundred seventy-two billion, seven hundred seventy-nine million, eight hundred fifty-two thousand, one hundred seventy-seven".