8505996712129 has 32 divisors (see below), whose sum is σ = 9875976192000. Its totient is φ = 7175656382400.

The previous prime is 8505996712121. The next prime is 8505996712201. The reversal of 8505996712129 is 9212176995058.

It is a cyclic number.

It is not a de Polignac number, because 8505996712129 - 2³ = 8505996712121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8505996712121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152905482 + ... + 152961100.

It is an arithmetic number, because the mean of its divisors is an integer number (308624256000).

Almost surely, 2^{8505996712129} is an apocalyptic number.

It is an amenable number.

8505996712129 is a deficient number, since it is larger than the sum of its proper divisors (1369979479871).

8505996712129 is a wasteful number, since it uses less digits than its factorization.

8505996712129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57013.

The product of its (nonzero) digits is 24494400, while the sum is 64.

The spelling of 8505996712129 in words is "eight trillion, five hundred five billion, nine hundred ninety-six million, seven hundred twelve thousand, one hundred twenty-nine".