21446746023356 has 12 divisors (see below), whose sum is σ = 38006891687520. Its totient is φ = 10587634112640.

The previous prime is 21446746023341. The next prime is 21446746023359. The reversal of 21446746023356 is 65332064764412.

It is a junction number, because it is equal to n+sod(n) for n = 21446746023298 and 21446746023307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21446746023359) 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, 33934724405 + ... + 33934725036.

It is an arithmetic number, because the mean of its divisors is an integer number (3167240973960).

Almost surely, 2^{21446746023356} is an apocalyptic number.

It is an amenable number.

21446746023356 is a deficient number, since it is larger than the sum of its proper divisors (16560145664164).

21446746023356 is a wasteful number, since it uses less digits than its factorization.

21446746023356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67869449524 (or 67869449522 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 53.

The spelling of 21446746023356 in words is "twenty-one trillion, four hundred forty-six billion, seven hundred forty-six million, twenty-three thousand, three hundred fifty-six".