21441401298 has 40 divisors (see below), whose sum is σ = 48702793788. Its totient is φ = 7049223936.

The previous prime is 21441401213. The next prime is 21441401309. The reversal of 21441401298 is 89210414412.

21441401298 is a `hidden beast` number, since 214 + 414 + 0 + 1 + 29 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21407493969 + 33907329 = 146313^2 + 5823^2 .

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 19 ways as a sum of consecutive naturals, for example, 894711 + ... + 918362.

Almost surely, 2^21441401298 is an apocalyptic number.

21441401298 is an abundant number, since it is smaller than the sum of its proper divisors (27261392490).

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

21441401298 is a wasteful number, since it uses less digits than its factorization.

21441401298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813160 (or 1813151 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 21441401298 in words is "twenty-one billion, four hundred forty-one million, four hundred one thousand, two hundred ninety-eight".