5178049514661 has 8 divisors (see below), whose sum is σ = 6906185794944. Its totient is φ = 3450973122080.

The previous prime is 5178049514633. The next prime is 5178049514669. The reversal of 5178049514661 is 1664159408715.

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 5178049514661 - 2¹⁵ = 5178049481893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178049514669) 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 7 ways as a sum of consecutive naturals, for example, 264960525 + ... + 264980066.

It is an arithmetic number, because the mean of its divisors is an integer number (863273224368).

Almost surely, 2^{5178049514661} is an apocalyptic number.

It is an amenable number.

5178049514661 is a deficient number, since it is larger than the sum of its proper divisors (1728136280283).

5178049514661 is a wasteful number, since it uses less digits than its factorization.

5178049514661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529943851.

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 5178049514661 in words is "five trillion, one hundred seventy-eight billion, forty-nine million, five hundred fourteen thousand, six hundred sixty-one".