5209488577787 has 16 divisors (see below), whose sum is σ = 5628263454240. Its totient is φ = 4793293435392.

The previous prime is 5209488577759. The next prime is 5209488577817. The reversal of 5209488577787 is 7877758849025.

It is a cyclic number.

It is not a de Polignac number, because 5209488577787 - 2⁶ = 5209488577723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5209488571787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94726664 + ... + 94781642.

It is an arithmetic number, because the mean of its divisors is an integer number (351766465890).

Almost surely, 2^{5209488577787} is an apocalyptic number.

5209488577787 is a deficient number, since it is larger than the sum of its proper divisors (418774876453).

5209488577787 is a wasteful number, since it uses less digits than its factorization.

5209488577787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78302.

The product of its (nonzero) digits is 2212761600, while the sum is 77.

The spelling of 5209488577787 in words is "five trillion, two hundred nine billion, four hundred eighty-eight million, five hundred seventy-seven thousand, seven hundred eighty-seven".