128333477349 has 24 divisors (see below), whose sum is σ = 231111371712. Its totient is φ = 66666741120.

The previous prime is 128333477347. The next prime is 128333477369. The reversal of 128333477349 is 943774333821.

128333477349 is a `hidden beast` number, since 128 + 3 + 3 + 3 + 477 + 3 + 49 = 666.

It is not a de Polignac number, because 128333477349 - 2¹ = 128333477347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128333477295 and 128333477304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128333477347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92592004 + ... + 92593389.

It is an arithmetic number, because the mean of its divisors is an integer number (9629640488).

Almost surely, 2^128333477349 is an apocalyptic number.

It is an amenable number.

128333477349 is a deficient number, since it is larger than the sum of its proper divisors (102777894363).

128333477349 is a wasteful number, since it uses less digits than its factorization.

128333477349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185185417 (or 185185414 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The spelling of 128333477349 in words is "one hundred twenty-eight billion, three hundred thirty-three million, four hundred seventy-seven thousand, three hundred forty-nine".