23801980447 has 64 divisors (see below), whose sum is σ = 30143872000. Its totient is φ = 18723519360.

The previous prime is 23801980439. The next prime is 23801980457. The reversal of 23801980447 is 74408910832.

It is not a de Polignac number, because 23801980447 - 2³ = 23801980439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23801980397 and 23801980406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23801980457) 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 63 ways as a sum of consecutive naturals, for example, 43995997 + ... + 43996537.

It is an arithmetic number, because the mean of its divisors is an integer number (470998000).

Almost surely, 2^23801980447 is an apocalyptic number.

23801980447 is a deficient number, since it is larger than the sum of its proper divisors (6341891553).

23801980447 is a wasteful number, since it uses less digits than its factorization.

23801980447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 23801980447 in words is "twenty-three billion, eight hundred one million, nine hundred eighty thousand, four hundred forty-seven".