21427002910 has 8 divisors (see below), whose sum is σ = 38568605256. Its totient is φ = 8570801160.

The previous prime is 21427002893. The next prime is 21427002931. The reversal of 21427002910 is 1920072412.

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

It is a congruent number.

It is an unprimeable number.

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, 1071350136 + ... + 1071350155.

It is an arithmetic number, because the mean of its divisors is an integer number (4821075657).

Almost surely, 2^21427002910 is an apocalyptic number.

21427002910 is a deficient number, since it is larger than the sum of its proper divisors (17141602346).

21427002910 is a wasteful number, since it uses less digits than its factorization.

21427002910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142700298.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 21427002910 in words is "twenty-one billion, four hundred twenty-seven million, two thousand, nine hundred ten".