7681341506513 has 16 divisors (see below), whose sum is σ = 7920999507456. Its totient is φ = 7445201886720.

The previous prime is 7681341506507. The next prime is 7681341506521. The reversal of 7681341506513 is 3156051431867.

It is a cyclic number.

It is not a de Polignac number, because 7681341506513 - 2²⁰ = 7681340457937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7681341506593) 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, 107656256 + ... + 107727582.

It is an arithmetic number, because the mean of its divisors is an integer number (495062469216).

Almost surely, 2^{7681341506513} is an apocalyptic number.

It is an amenable number.

7681341506513 is a deficient number, since it is larger than the sum of its proper divisors (239658000943).

7681341506513 is a wasteful number, since it uses less digits than its factorization.

7681341506513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95944.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 7681341506513 in words is "seven trillion, six hundred eighty-one billion, three hundred forty-one million, five hundred six thousand, five hundred thirteen".