128769433185297 has 8 divisors (see below), whose sum is σ = 171692665111744. Its totient is φ = 85846245024528.

The previous prime is 128769433185227. The next prime is 128769433185299. The reversal of 128769433185297 is 792581334967821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128769433185297 - 2¹² = 128769433181201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128769433185299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3317218 + ... + 16387275.

It is an arithmetic number, because the mean of its divisors is an integer number (21461583138968).

Almost surely, 2^{128769433185297} is an apocalyptic number.

It is an amenable number.

128769433185297 is a deficient number, since it is larger than the sum of its proper divisors (42923231926447).

128769433185297 is a wasteful number, since it uses less digits than its factorization.

128769433185297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21882839.

The product of its digits is 1097349120, while the sum is 75.

The spelling of 128769433185297 in words is "one hundred twenty-eight trillion, seven hundred sixty-nine billion, four hundred thirty-three million, one hundred eighty-five thousand, two hundred ninety-seven".