128006910739 has 8 divisors (see below), whose sum is σ = 128685473280. Its totient is φ = 127329452736.

The previous prime is 128006910727. The next prime is 128006910809. The reversal of 128006910739 is 937019600821.

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 128006910739 - 2¹³ = 128006902547 is a prime.

It is a super-2 number, since 2×128006910739² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128006910839) 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, 43219 + ... + 507820.

It is an arithmetic number, because the mean of its divisors is an integer number (16085684160).

Almost surely, 2^128006910739 is an apocalyptic number.

128006910739 is a deficient number, since it is larger than the sum of its proper divisors (678562541).

128006910739 is an equidigital number, since it uses as much as digits as its factorization.

128006910739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552269.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 128006910739 in words is "one hundred twenty-eight billion, six million, nine hundred ten thousand, seven hundred thirty-nine".