3988786516271 has 4 divisors (see below), whose sum is σ = 3990293427312. Its totient is φ = 3987279605232.

The previous prime is 3988786516219. The next prime is 3988786516277. The reversal of 3988786516271 is 1726156878893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3988786516271 - 2¹⁰ = 3988786515247 is a prime.

It is a super-3 number, since 3×3988786516271³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3988786516195 and 3988786516204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988786516277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753451550 + ... + 753456843.

It is an arithmetic number, because the mean of its divisors is an integer number (997573356828).

Almost surely, 2^{3988786516271} is an apocalyptic number.

3988786516271 is a deficient number, since it is larger than the sum of its proper divisors (1506911041).

3988786516271 is a wasteful number, since it uses less digits than its factorization.

3988786516271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506911040.

The product of its digits is 243855360, while the sum is 71.

The spelling of 3988786516271 in words is "three trillion, nine hundred eighty-eight billion, seven hundred eighty-six million, five hundred sixteen thousand, two hundred seventy-one".