128769433184992 has 24 divisors (see below), whose sum is σ = 253515220060032. Its totient is φ = 64384615392000.

The previous prime is 128769433184983. The next prime is 128769433185017. The reversal of 128769433184992 is 299481334967821.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20160492 + ... + 25767892.

It is an arithmetic number, because the mean of its divisors is an integer number (10563134169168).

Almost surely, 2^{128769433184992} is an apocalyptic number.

It is an amenable number.

128769433184992 is a deficient number, since it is larger than the sum of its proper divisors (124745786875040).

128769433184992 is an equidigital number, since it uses as much as digits as its factorization.

128769433184992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325042 (or 6325034 counting only the distinct ones).

The product of its digits is 1128701952, while the sum is 76.

The spelling of 128769433184992 in words is "one hundred twenty-eight trillion, seven hundred sixty-nine billion, four hundred thirty-three million, one hundred eighty-four thousand, nine hundred ninety-two".