128346128276 has 12 divisors (see below), whose sum is σ = 224610894900. Its totient is φ = 64171586880.

The previous prime is 128346128243. The next prime is 128346128321. The reversal of 128346128276 is 672821643821.

It can be written as a sum of positive squares in 2 ways, for example, as 70782602500 + 57563525776 = 266050^2 + 239924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160745 + ... + 531536.

It is an arithmetic number, because the mean of its divisors is an integer number (18717574575).

Almost surely, 2^128346128276 is an apocalyptic number.

It is an amenable number.

128346128276 is a deficient number, since it is larger than the sum of its proper divisors (96264766624).

128346128276 is a wasteful number, since it uses less digits than its factorization.

128346128276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738634 (or 738632 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The spelling of 128346128276 in words is "one hundred twenty-eight billion, three hundred forty-six million, one hundred twenty-eight thousand, two hundred seventy-six".