128677392045 has 32 divisors (see below), whose sum is σ = 229042074240. Its totient is φ = 68543262720.

The previous prime is 128677392029. The next prime is 128677392089. The reversal of 128677392045 is 540293776821.

It is a happy number.

It is not a de Polignac number, because 128677392045 - 2⁴ = 128677392029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128677391982 and 128677392000.

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 31 ways as a sum of consecutive naturals, for example, 478164 + ... + 697133.

It is an arithmetic number, because the mean of its divisors is an integer number (7157564820).

It is a 1-persistent number, because it is pandigital, but 2⋅128677392045 = 257354784090 is not.

Almost surely, 2^128677392045 is an apocalyptic number.

128677392045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128677392045 is a deficient number, since it is larger than the sum of its proper divisors (100364682195).

128677392045 is a wasteful number, since it uses less digits than its factorization.

128677392045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176122 (or 1176116 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 128677392045 in words is "one hundred twenty-eight billion, six hundred seventy-seven million, three hundred ninety-two thousand, forty-five".