233925879447 has 16 divisors (see below), whose sum is σ = 373215078880. Its totient is φ = 143954387136.

The previous prime is 233925879443. The next prime is 233925879449. The reversal of 233925879447 is 744978529332.

233925879447 is a `hidden beast` number, since 2 + 3 + 3 + 9 + 2 + 587 + 9 + 4 + 47 = 666.

It is not a de Polignac number, because 233925879447 - 2² = 233925879443 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 (233925879443) 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, 333227398 + ... + 333228099.

It is an arithmetic number, because the mean of its divisors is an integer number (23325942430).

Almost surely, 2^233925879447 is an apocalyptic number.

233925879447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

233925879447 is a deficient number, since it is larger than the sum of its proper divisors (139289199433).

233925879447 is a wasteful number, since it uses less digits than its factorization.

233925879447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666455519 (or 666455513 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 233925879447 in words is "two hundred thirty-three billion, nine hundred twenty-five million, eight hundred seventy-nine thousand, four hundred forty-seven".