5201866701869 has 4 divisors (see below), whose sum is σ = 5217302508444. Its totient is φ = 5186430895296.

The previous prime is 5201866701839. The next prime is 5201866701959. The reversal of 5201866701869 is 9681076681025.

It is a happy number.

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 3440839502500 + 1761027199369 = 1854950^2 + 1327037^2 .

It is a cyclic number.

It is not a de Polignac number, because 5201866701869 - 2²⁰ = 5201865653293 is a prime.

It is a super-2 number, since 2×5201866701869² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5201866701839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7717902782 + ... + 7717903455.

It is an arithmetic number, because the mean of its divisors is an integer number (1304325627111).

Almost surely, 2^{5201866701869} is an apocalyptic number.

It is an amenable number.

5201866701869 is a deficient number, since it is larger than the sum of its proper divisors (15435806575).

5201866701869 is a wasteful number, since it uses less digits than its factorization.

5201866701869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15435806574.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 5201866701869 in words is "five trillion, two hundred one billion, eight hundred sixty-six million, seven hundred one thousand, eight hundred sixty-nine".