21467713252 has 24 divisors (see below), whose sum is σ = 37859472000. Its totient is φ = 10651040736.

The previous prime is 21467713231. The next prime is 21467713259. The reversal of 21467713252 is 25231776412.

It is not an unprimeable number, because it can be changed into a prime (21467713259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230874 + ... + 310222.

It is an arithmetic number, because the mean of its divisors is an integer number (1577478000).

Almost surely, 2^21467713252 is an apocalyptic number.

It is an amenable number.

21467713252 is a deficient number, since it is larger than the sum of its proper divisors (16391758748).

21467713252 is a wasteful number, since it uses less digits than its factorization.

21467713252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79875 (or 79873 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The spelling of 21467713252 in words is "twenty-one billion, four hundred sixty-seven million, seven hundred thirteen thousand, two hundred fifty-two".