21446310969306 has 28 divisors (see below), whose sum is σ = 48232135578282. Its totient is φ = 7148770322616.

The previous prime is 21446310969221. The next prime is 21446310969331. The reversal of 21446310969306 is 60396901364412.

It is a happy number.

21446310969306 is a `hidden beast` number, since 2 + 1 + 4 + 463 + 1 + 0 + 96 + 93 + 0 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21295502237025 + 150808732281 = 4614705^2 + 388341^2 .

It is a super-2 number, since 2×21446310969306² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 7354700521 + ... + 7354703436.

Almost surely, 2^{21446310969306} is an apocalyptic number.

21446310969306 is an abundant number, since it is smaller than the sum of its proper divisors (26785824608976).

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

21446310969306 is an equidigital number, since it uses as much as digits as its factorization.

21446310969306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14709403977 (or 14709403962 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 21446310969306 in words is "twenty-one trillion, four hundred forty-six billion, three hundred ten million, nine hundred sixty-nine thousand, three hundred six".