128502346383 has 6 divisors (see below), whose sum is σ = 185614500344. Its totient is φ = 85668230916.

The previous prime is 128502346363. The next prime is 128502346387. The reversal of 128502346383 is 383643205821.

128502346383 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 0 + 2 + 3 + 4 + 638 + 3 = 666.

It is not a de Polignac number, because 128502346383 - 2⁹ = 128502345871 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 (128502346387) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7139019235 + ... + 7139019252.

Almost surely, 2^128502346383 is an apocalyptic number.

128502346383 is a deficient number, since it is larger than the sum of its proper divisors (57112153961).

128502346383 is a wasteful number, since it uses less digits than its factorization.

128502346383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14278038493 (or 14278038490 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 128502346383 in words is "one hundred twenty-eight billion, five hundred two million, three hundred forty-six thousand, three hundred eighty-three".