128401944310 has 16 divisors (see below), whose sum is σ = 234573105456. Its totient is φ = 50594198688.

The previous prime is 128401944287. The next prime is 128401944317. The reversal of 128401944310 is 13449104821.

It is a super-2 number, since 2×128401944310² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128401944310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128401944317) by changing a digit.

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, 95821677 + ... + 95823016.

It is an arithmetic number, because the mean of its divisors is an integer number (14660819091).

Almost surely, 2^128401944310 is an apocalyptic number.

128401944310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128401944310 is a deficient number, since it is larger than the sum of its proper divisors (106171161146).

128401944310 is a wasteful number, since it uses less digits than its factorization.

128401944310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191644767.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 128401944310 in words is "one hundred twenty-eight billion, four hundred one million, nine hundred forty-four thousand, three hundred ten".