21412415753128 has 8 divisors (see below), whose sum is σ = 40148279537130. Its totient is φ = 10706207876560.

The previous prime is 21412415753063. The next prime is 21412415753167. The reversal of 21412415753128 is 82135751421412.

It can be written as a sum of positive squares in only one way, i.e., 20548107132004 + 864308621124 = 4533002^2 + 929682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1338275984563 + ... + 1338275984578.

Almost surely, 2^{21412415753128} is an apocalyptic number.

It is an amenable number.

21412415753128 is a deficient number, since it is larger than the sum of its proper divisors (18735863784002).

21412415753128 is a wasteful number, since it uses less digits than its factorization.

21412415753128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676551969147 (or 2676551969143 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The spelling of 21412415753128 in words is "twenty-one trillion, four hundred twelve billion, four hundred fifteen million, seven hundred fifty-three thousand, one hundred twenty-eight".