5127617866 has 16 divisors (see below), whose sum is σ = 8795422656. Its totient is φ = 2196245376.

The previous prime is 5127617839. The next prime is 5127617923. The reversal of 5127617866 is 6687167215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84156 + ... + 131671.

It is an arithmetic number, because the mean of its divisors is an integer number (549713916).

Almost surely, 2^5127617866 is an apocalyptic number.

5127617866 is a deficient number, since it is larger than the sum of its proper divisors (3667804790).

5127617866 is a wasteful number, since it uses less digits than its factorization.

5127617866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217533.

The product of its digits is 846720, while the sum is 49.

The square root of 5127617866 is about 71607.3869513474. The cubic root of 5127617866 is about 1724.4021302437.

The spelling of 5127617866 in words is "five billion, one hundred twenty-seven million, six hundred seventeen thousand, eight hundred sixty-six".