21526031046722 has 8 divisors (see below), whose sum is σ = 32304652688700. Its totient is φ = 10757813483824.

The previous prime is 21526031046713. The next prime is 21526031046727. The reversal of 21526031046722 is 22764013062512.

It can be written as a sum of positive squares in 2 ways, for example, as 17047724374321 + 4478306672401 = 4128889^2 + 2116201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21526031046722.

It is not an unprimeable number, because it can be changed into a prime (21526031046727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2601014597 + ... + 2601022872.

Almost surely, 2^{21526031046722} is an apocalyptic number.

21526031046722 is a deficient number, since it is larger than the sum of its proper divisors (10778621641978).

21526031046722 is a wasteful number, since it uses less digits than its factorization.

21526031046722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202039540.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 21526031046722 in words is "twenty-one trillion, five hundred twenty-six billion, thirty-one million, forty-six thousand, seven hundred twenty-two".