21366484270 has 8 divisors (see below), whose sum is σ = 38459671704. Its totient is φ = 8546593704.

The previous prime is 21366484241. The next prime is 21366484277. The reversal of 21366484270 is 7248466312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21366484277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068324204 + ... + 1068324223.

It is an arithmetic number, because the mean of its divisors is an integer number (4807458963).

Almost surely, 2^21366484270 is an apocalyptic number.

21366484270 is a deficient number, since it is larger than the sum of its proper divisors (17093187434).

21366484270 is a wasteful number, since it uses less digits than its factorization.

21366484270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136648434.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 21366484270 in words is "twenty-one billion, three hundred sixty-six million, four hundred eighty-four thousand, two hundred seventy".