76561123085 has 8 divisors (see below), whose sum is σ = 91876932600. Its totient is φ = 61246508544.

The previous prime is 76561123073. The next prime is 76561123087. The reversal of 76561123085 is 58032116567.

It can be written as a sum of positive squares in 4 ways, for example, as 5149784644 + 71411338441 = 71762^2 + 267229^2 .

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 76561123085 - 2⁸ = 76561122829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76561123087) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 151160 + ... + 419489.

It is an arithmetic number, because the mean of its divisors is an integer number (11484616575).

Almost surely, 2^76561123085 is an apocalyptic number.

It is an amenable number.

76561123085 is a deficient number, since it is larger than the sum of its proper divisors (15315809515).

76561123085 is a wasteful number, since it uses less digits than its factorization.

76561123085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597487.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 76561123085 in words is "seventy-six billion, five hundred sixty-one million, one hundred twenty-three thousand, eighty-five".