8126723020585 has 12 divisors (see below), whose sum is σ = 10559931216012. Its totient is φ = 6001272383808.

The previous prime is 8126723020583. The next prime is 8126723020597. The reversal of 8126723020585 is 5850203276218.

It can be written as a sum of positive squares in 6 ways, for example, as 922936804416 + 7203786216169 = 960696^2 + 2683987^2 .

It is not a de Polignac number, because 8126723020585 - 2¹ = 8126723020583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8126723020583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4808711002 + ... + 4808712691.

It is an arithmetic number, because the mean of its divisors is an integer number (879994268001).

Almost surely, 2^{8126723020585} is an apocalyptic number.

It is an amenable number.

8126723020585 is a deficient number, since it is larger than the sum of its proper divisors (2433208195427).

8126723020585 is a wasteful number, since it uses less digits than its factorization.

8126723020585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9617423724 (or 9617423711 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 8126723020585 in words is "eight trillion, one hundred twenty-six billion, seven hundred twenty-three million, twenty thousand, five hundred eighty-five".