23505905206850 has 24 divisors (see below), whose sum is σ = 47695618566288. Its totient is φ = 8547601893200.

The previous prime is 23505905206843. The next prime is 23505905206859. The reversal of 23505905206850 is 5860250950532.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (23505905206859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21369004184 + ... + 21369005283.

It is an arithmetic number, because the mean of its divisors is an integer number (1987317440262).

Almost surely, 2^{23505905206850} is an apocalyptic number.

23505905206850 is an abundant number, since it is smaller than the sum of its proper divisors (24189713359438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23505905206850 is a wasteful number, since it uses less digits than its factorization.

23505905206850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42738009490 (or 42738009485 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 50.

The spelling of 23505905206850 in words is "twenty-three trillion, five hundred five billion, nine hundred five million, two hundred six thousand, eight hundred fifty".