1328910143769 has 48 divisors (see below), whose sum is σ = 2162078231040. Its totient is φ = 780419122560.

The previous prime is 1328910143747. The next prime is 1328910143777. The reversal of 1328910143769 is 9673410198231.

1328910143769 is a `hidden beast` number, since 132 + 8 + 9 + 10 + 1 + 437 + 69 = 666.

It is not a de Polignac number, because 1328910143769 - 2⁸ = 1328910143513 is a prime.

It is a super-2 number, since 2×1328910143769² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1328910143569) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 586927 + ... + 1732715.

It is an arithmetic number, because the mean of its divisors is an integer number (45043296480).

Almost surely, 2^{1328910143769} is an apocalyptic number.

It is an amenable number.

1328910143769 is a deficient number, since it is larger than the sum of its proper divisors (833168087271).

1328910143769 is a wasteful number, since it uses less digits than its factorization.

1328910143769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146262 (or 1146259 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 1328910143769 in words is "one trillion, three hundred twenty-eight billion, nine hundred ten million, one hundred forty-three thousand, seven hundred sixty-nine".