128278234256414 has 96 divisors (see below), whose sum is σ = 214068487385088. Its totient is φ = 57602503411200.

The previous prime is 128278234256413. The next prime is 128278234256483. The reversal of 128278234256414 is 414652432872821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128278234256413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47740316579 + ... + 47740319265.

It is an arithmetic number, because the mean of its divisors is an integer number (2229880076928).

Almost surely, 2^{128278234256414} is an apocalyptic number.

128278234256414 is a deficient number, since it is larger than the sum of its proper divisors (85790253128674).

128278234256414 is a wasteful number, since it uses less digits than its factorization.

128278234256414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742 (or 5731 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 59.

The spelling of 128278234256414 in words is "one hundred twenty-eight trillion, two hundred seventy-eight billion, two hundred thirty-four million, two hundred fifty-six thousand, four hundred fourteen".