6518823940369 has 16 divisors (see below), whose sum is σ = 7125884338048. Its totient is φ = 5926872010752.

The previous prime is 6518823940367. The next prime is 6518823940393. The reversal of 6518823940369 is 9630493288156.

6518823940369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6518823940369 - 2¹ = 6518823940367 is a prime.

It is a super-2 number, since 2×6518823940369² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6518823940369.

It is not an unprimeable number, because it can be changed into a prime (6518823940367) 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, 7098769 + ... + 7964305.

It is an arithmetic number, because the mean of its divisors is an integer number (445367771128).

Almost surely, 2^{6518823940369} is an apocalyptic number.

It is an amenable number.

6518823940369 is a deficient number, since it is larger than the sum of its proper divisors (607060397679).

6518823940369 is a wasteful number, since it uses less digits than its factorization.

6518823940369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874264.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 6518823940369 in words is "six trillion, five hundred eighteen billion, eight hundred twenty-three million, nine hundred forty thousand, three hundred sixty-nine".