21847146458308 has 12 divisors (see below), whose sum is σ = 38279765277180. Its totient is φ = 10910070664832.

The previous prime is 21847146458273. The next prime is 21847146458309. The reversal of 21847146458308 is 80385464174812.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8398218529024 + 13448927929284 = 2897968^2 + 3667278^2 .

It is not an unprimeable number, because it can be changed into a prime (21847146458309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3375637441 + ... + 3375643912.

It is an arithmetic number, because the mean of its divisors is an integer number (3189980439765).

Almost surely, 2^{21847146458308} is an apocalyptic number.

It is an amenable number.

21847146458308 is a deficient number, since it is larger than the sum of its proper divisors (16432618818872).

21847146458308 is a wasteful number, since it uses less digits than its factorization.

21847146458308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751282166 (or 6751282164 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 61.

The spelling of 21847146458308 in words is "twenty-one trillion, eight hundred forty-seven billion, one hundred forty-six million, four hundred fifty-eight thousand, three hundred eight".