6517678741 has 16 divisors (see below), whose sum is σ = 7499381760. Its totient is φ = 5548757760.

The previous prime is 6517678721. The next prime is 6517678771. The reversal of 6517678741 is 1478767156.

It is a happy number.

It is not a de Polignac number, because 6517678741 - 2⁵ = 6517678709 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 (6517678711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629436 + ... + 639706.

It is an arithmetic number, because the mean of its divisors is an integer number (468711360).

Almost surely, 2^6517678741 is an apocalyptic number.

It is an amenable number.

6517678741 is a deficient number, since it is larger than the sum of its proper divisors (981703019).

6517678741 is a wasteful number, since it uses less digits than its factorization.

6517678741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10884.

The product of its digits is 1975680, while the sum is 52.

The square root of 6517678741 is about 80732.1419324422. The cubic root of 6517678741 is about 1867.9459980270.

The spelling of 6517678741 in words is "six billion, five hundred seventeen million, six hundred seventy-eight thousand, seven hundred forty-one".