128398471333 has 4 divisors (see below), whose sum is σ = 140071059648. Its totient is φ = 116725883020.

The previous prime is 128398471321. The next prime is 128398471349. The reversal of 128398471333 is 333174893821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128398471333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128398471373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5836294141 + ... + 5836294162.

It is an arithmetic number, because the mean of its divisors is an integer number (35017764912).

Almost surely, 2^128398471333 is an apocalyptic number.

It is an amenable number.

128398471333 is a deficient number, since it is larger than the sum of its proper divisors (11672588315).

128398471333 is a wasteful number, since it uses less digits than its factorization.

128398471333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11672588314.

The product of its digits is 2612736, while the sum is 52.

The spelling of 128398471333 in words is "one hundred twenty-eight billion, three hundred ninety-eight million, four hundred seventy-one thousand, three hundred thirty-three".