5477171216987 has 2 divisors, whose sum is σ = 5477171216988. Its totient is φ = 5477171216986.

The previous prime is 5477171216903. The next prime is 5477171216999. The reversal of 5477171216987 is 7896121717745.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5477171216987 - 2²⁶ = 5477104108123 is a prime.

It is not a weakly prime, because it can be changed into another prime (5477171215987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2738585608493 + 2738585608494.

It is an arithmetic number, because the mean of its divisors is an integer number (2738585608494).

Almost surely, 2^{5477171216987} is an apocalyptic number.

5477171216987 is a deficient number, since it is larger than the sum of its proper divisors (1).

5477171216987 is an equidigital number, since it uses as much as digits as its factorization.

5477171216987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41489280, while the sum is 65.

The spelling of 5477171216987 in words is "five trillion, four hundred seventy-seven billion, one hundred seventy-one million, two hundred sixteen thousand, nine hundred eighty-seven".