86126782465 has 8 divisors (see below), whose sum is σ = 103364168040. Its totient is φ = 68893406592.

The previous prime is 86126782409. The next prime is 86126782477. The reversal of 86126782465 is 56428762168.

It can be written as a sum of positive squares in 4 ways, for example, as 4241526129 + 81885256336 = 65127^2 + 286156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86126782465 - 2²⁵ = 86093228033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954964 + ... + 1041253.

It is an arithmetic number, because the mean of its divisors is an integer number (12920521005).

Almost surely, 2^86126782465 is an apocalyptic number.

It is an amenable number.

86126782465 is a deficient number, since it is larger than the sum of its proper divisors (17237385575).

86126782465 is a wasteful number, since it uses less digits than its factorization.

86126782465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004851.

The product of its digits is 7741440, while the sum is 55.

The spelling of 86126782465 in words is "eighty-six billion, one hundred twenty-six million, seven hundred eighty-two thousand, four hundred sixty-five".