6711008752991 has 4 divisors (see below), whose sum is σ = 6711413705832. Its totient is φ = 6710603800152.

The previous prime is 6711008752979. The next prime is 6711008753017. The reversal of 6711008752991 is 1992578001176.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6711008752991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6711008752961) 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, 202451561 + ... + 202484706.

It is an arithmetic number, because the mean of its divisors is an integer number (1677853426458).

Almost surely, 2^{6711008752991} is an apocalyptic number.

6711008752991 is a deficient number, since it is larger than the sum of its proper divisors (404952841).

6711008752991 is a wasteful number, since it uses less digits than its factorization.

6711008752991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404952840.

The product of its (nonzero) digits is 1905120, while the sum is 56.

The spelling of 6711008752991 in words is "six trillion, seven hundred eleven billion, eight million, seven hundred fifty-two thousand, nine hundred ninety-one".