7716536613 has 12 divisors (see below), whose sum is σ = 11298795820. Its totient is φ = 5073886656.

The previous prime is 7716536609. The next prime is 7716536621. The reversal of 7716536613 is 3166356177.

It can be written as a sum of positive squares in 2 ways, for example, as 5903309889 + 1813226724 = 76833^2 + 42582^2 .

It is not a de Polignac number, because 7716536613 - 2² = 7716536609 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 (7716536603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5871898 + ... + 5873211.

Almost surely, 2^7716536613 is an apocalyptic number.

7716536613 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7716536613 is a deficient number, since it is larger than the sum of its proper divisors (3582259207).

7716536613 is a wasteful number, since it uses less digits than its factorization.

7716536613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11745188 (or 11745185 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 7716536613 is about 87843.8194354048. The cubic root of 7716536613 is about 1976.0934275796.

The spelling of 7716536613 in words is "seven billion, seven hundred sixteen million, five hundred thirty-six thousand, six hundred thirteen".