6716751274657 has 4 divisors (see below), whose sum is σ = 6716922254100. Its totient is φ = 6716580295216.

The previous prime is 6716751274633. The next prime is 6716751274687. The reversal of 6716751274657 is 7564721576176.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6029337831841 + 687413442816 = 2455471^2 + 829104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6716751274657 is a prime.

It is a super-2 number, since 2×6716751274657² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6716751274627) 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, 85430782 + ... + 85509367.

It is an arithmetic number, because the mean of its divisors is an integer number (1679230563525).

Almost surely, 2^{6716751274657} is an apocalyptic number.

It is an amenable number.

6716751274657 is a deficient number, since it is larger than the sum of its proper divisors (170979443).

6716751274657 is a wasteful number, since it uses less digits than its factorization.

6716751274657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170979442.

The product of its digits is 103723200, while the sum is 64.

The spelling of 6716751274657 in words is "six trillion, seven hundred sixteen billion, seven hundred fifty-one million, two hundred seventy-four thousand, six hundred fifty-seven".