128473642323 has 48 divisors (see below), whose sum is σ = 208707840000. Its totient is φ = 78059715552.

The previous prime is 128473642307. The next prime is 128473642403. The reversal of 128473642323 is 323246374821.

128473642323 is a `hidden beast` number, since 1 + 284 + 7 + 3 + 6 + 42 + 323 = 666.

It is not a de Polignac number, because 128473642323 - 2⁴ = 128473642307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128473642123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182278 + ... + 538676.

It is an arithmetic number, because the mean of its divisors is an integer number (4348080000).

Almost surely, 2^128473642323 is an apocalyptic number.

128473642323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128473642323 is a deficient number, since it is larger than the sum of its proper divisors (80234197677).

128473642323 is a wasteful number, since it uses less digits than its factorization.

128473642323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356513 (or 356494 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The spelling of 128473642323 in words is "one hundred twenty-eight billion, four hundred seventy-three million, six hundred forty-two thousand, three hundred twenty-three".