86728608425 has 6 divisors (see below), whose sum is σ = 107543474478. Its totient is φ = 69382886720.

The previous prime is 86728608413. The next prime is 86728608431. The reversal of 86728608425 is 52480682768.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 142014889 + 86586593536 = 11917^2 + 294256^2 .

It is not a de Polignac number, because 86728608425 - 2²² = 86724414121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1734572144 + ... + 1734572193.

It is an arithmetic number, because the mean of its divisors is an integer number (17923912413).

Almost surely, 2^86728608425 is an apocalyptic number.

It is an amenable number.

86728608425 is a deficient number, since it is larger than the sum of its proper divisors (20814866053).

86728608425 is a wasteful number, since it uses less digits than its factorization.

86728608425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469144347 (or 3469144342 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 86728608425 in words is "eighty-six billion, seven hundred twenty-eight million, six hundred eight thousand, four hundred twenty-five".