128419309470 has 32 divisors (see below), whose sum is σ = 318148485120. Its totient is φ = 33140466720.

The previous prime is 128419309433. The next prime is 128419309477. The reversal of 128419309470 is 74903914821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128419309477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69041710 + ... + 69043569.

It is an arithmetic number, because the mean of its divisors is an integer number (9942140160).

Almost surely, 2^128419309470 is an apocalyptic number.

128419309470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128419309470 is an abundant number, since it is smaller than the sum of its proper divisors (189729175650).

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

128419309470 is a wasteful number, since it uses less digits than its factorization.

128419309470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138085320.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 128419309470 in words is "one hundred twenty-eight billion, four hundred nineteen million, three hundred nine thousand, four hundred seventy".