21462227027 has 16 divisors (see below), whose sum is σ = 21807146592. Its totient is φ = 21120491520.

The previous prime is 21462227023. The next prime is 21462227041. The reversal of 21462227027 is 72072226412.

It is a cyclic number.

It is not a de Polignac number, because 21462227027 - 2² = 21462227023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21462227023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12676193 + ... + 12677885.

It is an arithmetic number, because the mean of its divisors is an integer number (1362946662).

Almost surely, 2^21462227027 is an apocalyptic number.

21462227027 is a deficient number, since it is larger than the sum of its proper divisors (344919565).

21462227027 is a wasteful number, since it uses less digits than its factorization.

21462227027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518.

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 21462227027 in words is "twenty-one billion, four hundred sixty-two million, two hundred twenty-seven thousand, twenty-seven".