6511713747571 has 8 divisors (see below), whose sum is σ = 6527443041504. Its totient is φ = 6495991398720.

The previous prime is 6511713747551. The next prime is 6511713747589. The reversal of 6511713747571 is 1757473171156.

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 6511713747571 - 2²¹ = 6511711650419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6511713747551) 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, 143650 + ... + 3611656.

It is an arithmetic number, because the mean of its divisors is an integer number (815930380188).

Almost surely, 2^{6511713747571} is an apocalyptic number.

6511713747571 is a deficient number, since it is larger than the sum of its proper divisors (15729293933).

6511713747571 is a wasteful number, since it uses less digits than its factorization.

6511713747571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472541.

The product of its digits is 4321800, while the sum is 55.

The spelling of 6511713747571 in words is "six trillion, five hundred eleven billion, seven hundred thirteen million, seven hundred forty-seven thousand, five hundred seventy-one".