5284366783721 has 8 divisors (see below), whose sum is σ = 5287279215240. Its totient is φ = 5281454925568.

The previous prime is 5284366783667. The next prime is 5284366783727. The reversal of 5284366783721 is 1273876634825.

It can be written as a sum of positive squares in 4 ways, for example, as 275772019600 + 5008594764121 = 525140^2 + 2237989^2 .

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 5284366783721 - 2¹⁰ = 5284366782697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5284366783727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18993665 + ... + 19269873.

It is an arithmetic number, because the mean of its divisors is an integer number (660909901905).

Almost surely, 2^{5284366783721} is an apocalyptic number.

It is an amenable number.

5284366783721 is a deficient number, since it is larger than the sum of its proper divisors (2912431519).

5284366783721 is a wasteful number, since it uses less digits than its factorization.

5284366783721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286683.

The product of its digits is 81285120, while the sum is 62.

The spelling of 5284366783721 in words is "five trillion, two hundred eighty-four billion, three hundred sixty-six million, seven hundred eighty-three thousand, seven hundred twenty-one".