128251673730151 has 4 divisors (see below), whose sum is σ = 128251718038600. Its totient is φ = 128251629421704.

The previous prime is 128251673730149. The next prime is 128251673730227. The reversal of 128251673730151 is 151037376152821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128251673730151 - 2¹ = 128251673730149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128251673710151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17484321 + ... + 23710858.

It is an arithmetic number, because the mean of its divisors is an integer number (32062929509650).

Almost surely, 2^{128251673730151} is an apocalyptic number.

128251673730151 is a deficient number, since it is larger than the sum of its proper divisors (44308449).

128251673730151 is an equidigital number, since it uses as much as digits as its factorization.

128251673730151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44308448.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 128251673730151 in words is "one hundred twenty-eight trillion, two hundred fifty-one billion, six hundred seventy-three million, seven hundred thirty thousand, one hundred fifty-one".