21470614504705 has 16 divisors (see below), whose sum is σ = 26451927810000. Its totient is φ = 16720230768640.

The previous prime is 21470614504697. The next prime is 21470614504793. The reversal of 21470614504705 is 50740541607412.

It can be written as a sum of positive squares in 8 ways, for example, as 7666186988944 + 13804427515761 = 2768788^2 + 3715431^2 .

It is not a de Polignac number, because 21470614504705 - 2³ = 21470614504697 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116539030 + ... + 116723119.

It is an arithmetic number, because the mean of its divisors is an integer number (1653245488125).

Almost surely, 2^{21470614504705} is an apocalyptic number.

It is an amenable number.

21470614504705 is a deficient number, since it is larger than the sum of its proper divisors (4981313305295).

21470614504705 is a wasteful number, since it uses less digits than its factorization.

21470614504705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233262644.

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 21470614504705 in words is "twenty-one trillion, four hundred seventy billion, six hundred fourteen million, five hundred four thousand, seven hundred five".