8768816780413 has 8 divisors (see below), whose sum is σ = 9286015211640. Its totient is φ = 8251772313600.

The previous prime is 8768816780389. The next prime is 8768816780419. The reversal of 8768816780413 is 3140876188678.

It can be written as a sum of positive squares in 4 ways, for example, as 642822304644 + 8125994475769 = 801762^2 + 2850613^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8768816780413 is a prime.

It is a super-2 number, since 2×8768816780413² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8768816780419) 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, 38373828 + ... + 38601661.

It is an arithmetic number, because the mean of its divisors is an integer number (1160751901455).

Almost surely, 2^{8768816780413} is an apocalyptic number.

It is an amenable number.

8768816780413 is a deficient number, since it is larger than the sum of its proper divisors (517198431227).

8768816780413 is a wasteful number, since it uses less digits than its factorization.

8768816780413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76982207.

The product of its (nonzero) digits is 86704128, while the sum is 67.

The spelling of 8768816780413 in words is "eight trillion, seven hundred sixty-eight billion, eight hundred sixteen million, seven hundred eighty thousand, four hundred thirteen".