86572871509 has 2 divisors, whose sum is σ = 86572871510. Its totient is φ = 86572871508.

The previous prime is 86572871351. The next prime is 86572871513. The reversal of 86572871509 is 90517827568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61993530225 + 24579341284 = 248985^2 + 156778^2 .

It is a cyclic number.

It is not a de Polignac number, because 86572871509 - 2⁹ = 86572870997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86572871009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43286435754 + 43286435755.

It is an arithmetic number, because the mean of its divisors is an integer number (43286435755).

Almost surely, 2^86572871509 is an apocalyptic number.

It is an amenable number.

86572871509 is a deficient number, since it is larger than the sum of its proper divisors (1).

86572871509 is an equidigital number, since it uses as much as digits as its factorization.

86572871509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 58.

The spelling of 86572871509 in words is "eighty-six billion, five hundred seventy-two million, eight hundred seventy-one thousand, five hundred nine".