6497861747 has 8 divisors (see below), whose sum is σ = 7044041760. Its totient is φ = 5958302400.

The previous prime is 6497861743. The next prime is 6497861779. The reversal of 6497861747 is 7471687946.

It is a happy number.

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 6497861747 - 2² = 6497861743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6497861743) 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, 1653122 + ... + 1657047.

It is an arithmetic number, because the mean of its divisors is an integer number (880505220).

Almost surely, 2^6497861747 is an apocalyptic number.

6497861747 is a deficient number, since it is larger than the sum of its proper divisors (546180013).

6497861747 is a wasteful number, since it uses less digits than its factorization.

6497861747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310333.

The product of its digits is 14224896, while the sum is 59.

The square root of 6497861747 is about 80609.3155100575. The cubic root of 6497861747 is about 1866.0509135755.

The spelling of 6497861747 in words is "six billion, four hundred ninety-seven million, eight hundred sixty-one thousand, seven hundred forty-seven".