6538041517 has 16 divisors (see below), whose sum is σ = 7602577920. Its totient is φ = 5506235568.

The previous prime is 6538041491. The next prime is 6538041527. The reversal of 6538041517 is 7151408356.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6538041517 is a prime.

It is a super-2 number, since 2×6538041517² = 85491973756031322578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6538041517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538041527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363398 + ... + 1368184.

It is an arithmetic number, because the mean of its divisors is an integer number (475161120).

Almost surely, 2^6538041517 is an apocalyptic number.

It is an amenable number.

6538041517 is a deficient number, since it is larger than the sum of its proper divisors (1064536403).

6538041517 is a wasteful number, since it uses less digits than its factorization.

6538041517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8160.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 6538041517 is about 80858.1567746879. The cubic root of 6538041517 is about 1869.8892779535.

The spelling of 6538041517 in words is "six billion, five hundred thirty-eight million, forty-one thousand, five hundred seventeen".