6415128767769 has 16 divisors (see below), whose sum is σ = 8570162102400. Its totient is φ = 4268427937280.

The previous prime is 6415128767683. The next prime is 6415128767777. The reversal of 6415128767769 is 9677678215146.

It is a cyclic number.

It is not a de Polignac number, because 6415128767769 - 2¹³ = 6415128759577 is a prime.

It is a super-2 number, since 2×6415128767769² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6415128760769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6006259 + ... + 6993239.

It is an arithmetic number, because the mean of its divisors is an integer number (535635131400).

Almost surely, 2^{6415128767769} is an apocalyptic number.

It is an amenable number.

6415128767769 is a deficient number, since it is larger than the sum of its proper divisors (2155033334631).

6415128767769 is a wasteful number, since it uses less digits than its factorization.

6415128767769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991200.

The product of its digits is 213373440, while the sum is 69.

The spelling of 6415128767769 in words is "six trillion, four hundred fifteen billion, one hundred twenty-eight million, seven hundred sixty-seven thousand, seven hundred sixty-nine".