128243337450 has 48 divisors (see below), whose sum is σ = 329010504480. Its totient is φ = 33018973120.

The previous prime is 128243337413. The next prime is 128243337473. The reversal of 128243337450 is 54733342821.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14736264 + ... + 14744963.

It is an arithmetic number, because the mean of its divisors is an integer number (6854385510).

Almost surely, 2^128243337450 is an apocalyptic number.

128243337450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128243337450 is an abundant number, since it is smaller than the sum of its proper divisors (200767167030).

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

128243337450 is a wasteful number, since it uses less digits than its factorization.

128243337450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29481271 (or 29481266 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 128243337450 in words is "one hundred twenty-eight billion, two hundred forty-three million, three hundred thirty-seven thousand, four hundred fifty".