21470657542226 has 16 divisors (see below), whose sum is σ = 33730254897408. Its totient is φ = 10230683918400.

The previous prime is 21470657542199. The next prime is 21470657542247. The reversal of 21470657542226 is 62224575607412.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861156215 + ... + 861181146.

It is an arithmetic number, because the mean of its divisors is an integer number (2108140931088).

Almost surely, 2^{21470657542226} is an apocalyptic number.

21470657542226 is a deficient number, since it is larger than the sum of its proper divisors (12259597355182).

21470657542226 is a wasteful number, since it uses less digits than its factorization.

21470657542226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722337657.

The product of its (nonzero) digits is 11289600, while the sum is 53.

The spelling of 21470657542226 in words is "twenty-one trillion, four hundred seventy billion, six hundred fifty-seven million, five hundred forty-two thousand, two hundred twenty-six".