128024454669 has 16 divisors (see below), whose sum is σ = 173051933952. Its totient is φ = 84173499648.

The previous prime is 128024454637. The next prime is 128024454703. The reversal of 128024454669 is 966454420821.

It is not a de Polignac number, because 128024454669 - 2⁵ = 128024454637 is a prime.

It is a super-2 number, since 2×128024454669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128024454619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5219017 + ... + 5243489.

It is an arithmetic number, because the mean of its divisors is an integer number (10815745872).

Almost surely, 2^128024454669 is an apocalyptic number.

It is an amenable number.

128024454669 is a deficient number, since it is larger than the sum of its proper divisors (45027479283).

128024454669 is a wasteful number, since it uses less digits than its factorization.

128024454669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48436.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 128024454669 in words is "one hundred twenty-eight billion, twenty-four million, four hundred fifty-four thousand, six hundred sixty-nine".