21271040514 has 24 divisors (see below), whose sum is σ = 46090811052. Its totient is φ = 7089799680.

The previous prime is 21271040501. The next prime is 21271040533. The reversal of 21271040514 is 41504017212.

21271040514 is a `hidden beast` number, since 21 + 27 + 104 + 0 + 514 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13751549289 + 7519491225 = 117267^2 + 86715^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243762 + ... + 319314.

Almost surely, 2^21271040514 is an apocalyptic number.

21271040514 is an abundant number, since it is smaller than the sum of its proper divisors (24819770538).

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

21271040514 is a wasteful number, since it uses less digits than its factorization.

21271040514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91202 (or 91199 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

Adding to 21271040514 its reverse (41504017212), we get a palindrome (62775057726).

The spelling of 21271040514 in words is "twenty-one billion, two hundred seventy-one million, forty thousand, five hundred fourteen".