86256534125 has 8 divisors (see below), whose sum is σ = 107648154744. Its totient is φ = 69005227200.

The previous prime is 86256534121. The next prime is 86256534127. The reversal of 86256534125 is 52143565268.

It can be written as a sum of positive squares in 4 ways, for example, as 9803178121 + 76453356004 = 99011^2 + 276502^2 .

It is not a de Polignac number, because 86256534125 - 2² = 86256534121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86256534125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86256534121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345026012 + ... + 345026261.

It is an arithmetic number, because the mean of its divisors is an integer number (13456019343).

Almost surely, 2^86256534125 is an apocalyptic number.

It is an amenable number.

86256534125 is a deficient number, since it is larger than the sum of its proper divisors (21391620619).

86256534125 is an equidigital number, since it uses as much as digits as its factorization.

86256534125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690052288 (or 690052278 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 47.

The spelling of 86256534125 in words is "eighty-six billion, two hundred fifty-six million, five hundred thirty-four thousand, one hundred twenty-five".