128253588026331 has 8 divisors (see below), whose sum is σ = 171654992340480. Its totient is φ = 85177287864872.

The previous prime is 128253588026257. The next prime is 128253588026357. The reversal of 128253588026331 is 133620885352821.

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 128253588026331 - 2³³ = 128244998091739 is a prime.

It is a super-2 number, since 2×128253588026331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128253588026381) 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, 81276037251 + ... + 81276038828.

It is an arithmetic number, because the mean of its divisors is an integer number (21456874042560).

Almost surely, 2^{128253588026331} is an apocalyptic number.

128253588026331 is a deficient number, since it is larger than the sum of its proper divisors (43401404314149).

128253588026331 is a wasteful number, since it uses less digits than its factorization.

128253588026331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162552076345.

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 128253588026331 in words is "one hundred twenty-eight trillion, two hundred fifty-three billion, five hundred eighty-eight million, twenty-six thousand, three hundred thirty-one".