6494756574947 has 4 divisors (see below), whose sum is σ = 6494803983720. Its totient is φ = 6494709166176.

The previous prime is 6494756574913. The next prime is 6494756574979. The reversal of 6494756574947 is 7494756574946.

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 6494756574947 - 2⁶ = 6494756574883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6494756514947) 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, 23498297 + ... + 23773082.

It is an arithmetic number, because the mean of its divisors is an integer number (1623700995930).

Almost surely, 2^{6494756574947} is an apocalyptic number.

6494756574947 is a deficient number, since it is larger than the sum of its proper divisors (47408773).

6494756574947 is a wasteful number, since it uses less digits than its factorization.

6494756574947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47408772.

The product of its digits is 6401203200, while the sum is 77.

Subtracting 6494756574947 from its reverse (7494756574946), we obtain a palindrome (999999999999).

The spelling of 6494756574947 in words is "six trillion, four hundred ninety-four billion, seven hundred fifty-six million, five hundred seventy-four thousand, nine hundred forty-seven".