6428943637165 has 16 divisors (see below), whose sum is σ = 8923063943808. Its totient is φ = 4355305016256.

The previous prime is 6428943637117. The next prime is 6428943637177. The reversal of 6428943637165 is 5617363498246.

It is a cyclic number.

It is not a de Polignac number, because 6428943637165 - 2⁷ = 6428943637037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6428943637097 and 6428943637106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1106527842 + ... + 1106533651.

It is an arithmetic number, because the mean of its divisors is an integer number (557691496488).

Almost surely, 2^{6428943637165} is an apocalyptic number.

It is an amenable number.

6428943637165 is a deficient number, since it is larger than the sum of its proper divisors (2494120306643).

6428943637165 is a wasteful number, since it uses less digits than its factorization.

6428943637165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213061588.

The product of its digits is 156764160, while the sum is 64.

The spelling of 6428943637165 in words is "six trillion, four hundred twenty-eight billion, nine hundred forty-three million, six hundred thirty-seven thousand, one hundred sixty-five".