21358463447036 has 12 divisors (see below), whose sum is σ = 37378095269760. Its totient is φ = 10679007655680.

The previous prime is 21358463447003. The next prime is 21358463447059. The reversal of 21358463447036 is 63074436485312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55802396 + ... + 56183843.

It is an arithmetic number, because the mean of its divisors is an integer number (3114841272480).

Almost surely, 2^{21358463447036} is an apocalyptic number.

It is an amenable number.

21358463447036 is a deficient number, since it is larger than the sum of its proper divisors (16019631822724).

21358463447036 is a wasteful number, since it uses less digits than its factorization.

21358463447036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112033924 (or 112033922 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 56.

The spelling of 21358463447036 in words is "twenty-one trillion, three hundred fifty-eight billion, four hundred sixty-three million, four hundred forty-seven thousand, thirty-six".