128269873077 has 16 divisors (see below), whose sum is σ = 174473636160. Its totient is φ = 83804602752.

The previous prime is 128269873063. The next prime is 128269873091. The reversal of 128269873077 is 770378962821.

It is an interprime number because it is at equal distance from previous prime (128269873063) and next prime (128269873091).

It is not a de Polignac number, because 128269873077 - 2¹⁶ = 128269807541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128269873077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128269873027) 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, 1830927 + ... + 1899692.

It is an arithmetic number, because the mean of its divisors is an integer number (10904602260).

Almost surely, 2^128269873077 is an apocalyptic number.

It is an amenable number.

128269873077 is a deficient number, since it is larger than the sum of its proper divisors (46203763083).

128269873077 is a wasteful number, since it uses less digits than its factorization.

128269873077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730852.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 128269873077 in words is "one hundred twenty-eight billion, two hundred sixty-nine million, eight hundred seventy-three thousand, seventy-seven".