5028687816457 has 4 divisors (see below), whose sum is σ = 5028698962756. Its totient is φ = 5028676670160.

The previous prime is 5028687816443. The next prime is 5028687816487. The reversal of 5028687816457 is 7546187868205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 983054403081 + 4045633413376 = 991491^2 + 2011376^2 .

It is a cyclic number.

It is not a de Polignac number, because 5028687816457 - 2¹⁹ = 5028687292169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5028687816392 and 5028687816401.

It is not an unprimeable number, because it can be changed into a prime (5028687816487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4866558 + ... + 5808679.

It is an arithmetic number, because the mean of its divisors is an integer number (1257174740689).

Almost surely, 2^{5028687816457} is an apocalyptic number.

It is an amenable number.

5028687816457 is a deficient number, since it is larger than the sum of its proper divisors (11146299).

5028687816457 is a wasteful number, since it uses less digits than its factorization.

5028687816457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11146298.

The product of its (nonzero) digits is 180633600, while the sum is 67.

The spelling of 5028687816457 in words is "five trillion, twenty-eight billion, six hundred eighty-seven million, eight hundred sixteen thousand, four hundred fifty-seven".