128246258514 has 48 divisors (see below), whose sum is σ = 282132133920. Its totient is φ = 38834611200.

The previous prime is 128246258507. The next prime is 128246258527. The reversal of 128246258514 is 415852642821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 960249 + ... + 1085619.

It is an arithmetic number, because the mean of its divisors is an integer number (5877752790).

Almost surely, 2^128246258514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128246258514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141066066960).

128246258514 is an abundant number, since it is smaller than the sum of its proper divisors (153885875406).

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

128246258514 is a wasteful number, since it uses less digits than its factorization.

128246258514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126807 (or 126796 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 48.

It can be divided in two parts, 128246 and 258514, that added together give a triangular number (386760 = T₈₇₉).

The spelling of 128246258514 in words is "one hundred twenty-eight billion, two hundred forty-six million, two hundred fifty-eight thousand, five hundred fourteen".