5127022789849 has 3 divisors (see below), whose sum is σ = 5127025054143. Its totient is φ = 5127020525556.

The previous prime is 5127022789717. The next prime is 5127022789873. The reversal of 5127022789849 is 9489872207215.

The square root of 5127022789849 is 2264293.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 857559342025 + 4269463447824 = 926045^2 + 2066268^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5127022789849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5127022789879) 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 2 ways as a sum of consecutive naturals, for example, 1132147 + ... + 3396439.

It is an arithmetic number, because the mean of its divisors is an integer number (1709008351381).

Almost surely, 2^{5127022789849} is an apocalyptic number.

5127022789849 is the 2264293-rd square number.

5127022789849 is the 1132147-th centered octagonal number.

It is an amenable number.

5127022789849 is a deficient number, since it is larger than the sum of its proper divisors (2264294).

5127022789849 is an frugal number, since it uses more digits than its factorization.

5127022789849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528586 (or 2264293 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 64.

Multiplying 5127022789849 by its sum of digits (64), we get a square (328129458550336 = 18114344²).

The spelling of 5127022789849 in words is "five trillion, one hundred twenty-seven billion, twenty-two million, seven hundred eighty-nine thousand, eight hundred forty-nine".