128008328504071 has 12 divisors (see below), whose sum is σ = 133826332428208. Its totient is φ = 122433193833984.

The previous prime is 128008328504057. The next prime is 128008328504129. The reversal of 128008328504071 is 170405823800821.

It is a happy number.

It is not a de Polignac number, because 128008328504071 - 2¹⁷ = 128008328372999 is a prime.

It is a super-2 number, since 2×128008328504071² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128008328504171) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2652090 + ... + 16218823.

Almost surely, 2^{128008328504071} is an apocalyptic number.

128008328504071 is a deficient number, since it is larger than the sum of its proper divisors (5818003924137).

128008328504071 is a wasteful number, since it uses less digits than its factorization.

128008328504071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18883782 (or 18883759 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 128008328504071 in words is "one hundred twenty-eight trillion, eight billion, three hundred twenty-eight million, five hundred four thousand, seventy-one".