128039343051 has 8 divisors (see below), whose sum is σ = 171741394944. Its totient is φ = 84848426600.

The previous prime is 128039343031. The next prime is 128039343083. The reversal of 128039343051 is 150343930821.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 128039343051 - 2⁶ = 128039342987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128039343031) 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, 127783275 + ... + 127784276.

It is an arithmetic number, because the mean of its divisors is an integer number (21467674368).

Almost surely, 2^128039343051 is an apocalyptic number.

128039343051 is a deficient number, since it is larger than the sum of its proper divisors (43702051893).

128039343051 is a wasteful number, since it uses less digits than its factorization.

128039343051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255567721.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 128039343051 in words is "one hundred twenty-eight billion, thirty-nine million, three hundred forty-three thousand, fifty-one".