86358973469 has 2 divisors, whose sum is σ = 86358973470. Its totient is φ = 86358973468.

The previous prime is 86358973423. The next prime is 86358973483. The reversal of 86358973469 is 96437985368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69083814244 + 17275159225 = 262838^2 + 131435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86358973469 is a prime.

It is a super-2 number, since 2×86358973469² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86358973399 and 86358973408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86358973499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43179486734 + 43179486735.

It is an arithmetic number, because the mean of its divisors is an integer number (43179486735).

Almost surely, 2^86358973469 is an apocalyptic number.

It is an amenable number.

86358973469 is a deficient number, since it is larger than the sum of its proper divisors (1).

86358973469 is an equidigital number, since it uses as much as digits as its factorization.

86358973469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235146240, while the sum is 68.

The spelling of 86358973469 in words is "eighty-six billion, three hundred fifty-eight million, nine hundred seventy-three thousand, four hundred sixty-nine".