6317721527513 has 8 divisors (see below), whose sum is σ = 7297475133600. Its totient is φ = 5405537135680.

The previous prime is 6317721527461. The next prime is 6317721527591. The reversal of 6317721527513 is 3157251277136.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6317721527513 - 2¹⁶ = 6317721461977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6317721527813) 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, 16892303363 + ... + 16892303736.

It is an arithmetic number, because the mean of its divisors is an integer number (912184391700).

Almost surely, 2^{6317721527513} is an apocalyptic number.

It is an amenable number.

6317721527513 is a deficient number, since it is larger than the sum of its proper divisors (979753606087).

6317721527513 is a wasteful number, since it uses less digits than its factorization.

6317721527513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33784607127.

The product of its digits is 1852200, while the sum is 50.

The spelling of 6317721527513 in words is "six trillion, three hundred seventeen billion, seven hundred twenty-one million, five hundred twenty-seven thousand, five hundred thirteen".