128571428154 has 16 divisors (see below), whose sum is σ = 276923076192. Its totient is φ = 39560439408.

The previous prime is 128571428143. The next prime is 128571428173. The reversal of 128571428154 is 451824175821.

It is a super-2 number, since 2×128571428154² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 824175744 + ... + 824175899.

It is an arithmetic number, because the mean of its divisors is an integer number (17307692262).

Almost surely, 2^128571428154 is an apocalyptic number.

128571428154 is an abundant number, since it is smaller than the sum of its proper divisors (148351648038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128571428154 is a wasteful number, since it uses less digits than its factorization.

128571428154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648351661.

The product of its digits is 716800, while the sum is 48.

The spelling of 128571428154 in words is "one hundred twenty-eight billion, five hundred seventy-one million, four hundred twenty-eight thousand, one hundred fifty-four".