21427136110 has 8 divisors (see below), whose sum is σ = 38568845016. Its totient is φ = 8570854440.

The previous prime is 21427136083. The next prime is 21427136131. The reversal of 21427136110 is 1163172412.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071356796 + ... + 1071356815.

It is an arithmetic number, because the mean of its divisors is an integer number (4821105627).

Almost surely, 2^21427136110 is an apocalyptic number.

21427136110 is a deficient number, since it is larger than the sum of its proper divisors (17141708906).

21427136110 is a wasteful number, since it uses less digits than its factorization.

21427136110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142713618.

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

The spelling of 21427136110 in words is "twenty-one billion, four hundred twenty-seven million, one hundred thirty-six thousand, one hundred ten".