21434222155458 has 16 divisors (see below), whose sum is σ = 48992507784000. Its totient is φ = 6124063472976.

The previous prime is 21434222155457. The next prime is 21434222155459. The reversal of 21434222155458 is 85455122243412.

It is an interprime number because it is at equal distance from previous prime (21434222155457) and next prime (21434222155459).

It is a super-5 number, since 5×21434222155458⁵ (a number of 68 digits) contains 55555 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21434222155457) 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 7 ways as a sum of consecutive naturals, for example, 255169311333 + ... + 255169311416.

It is an arithmetic number, because the mean of its divisors is an integer number (3062031736500).

Almost surely, 2^{21434222155458} is an apocalyptic number.

21434222155458 is an abundant number, since it is smaller than the sum of its proper divisors (27558285628542).

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

21434222155458 is a wasteful number, since it uses less digits than its factorization.

21434222155458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510338622761.

The product of its digits is 3072000, while the sum is 48.

The spelling of 21434222155458 in words is "twenty-one trillion, four hundred thirty-four billion, two hundred twenty-two million, one hundred fifty-five thousand, four hundred fifty-eight".