21058017327 has 6 divisors (see below), whose sum is σ = 30417136152. Its totient is φ = 14038678212.

The previous prime is 21058017313. The next prime is 21058017349. The reversal of 21058017327 is 72371085012.

21058017327 is a `hidden beast` number, since 2 + 1 + 0 + 580 + 1 + 73 + 2 + 7 = 666.

It is not a de Polignac number, because 21058017327 - 2⁷ = 21058017199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21058017291 and 21058017300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21058019327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1169889843 + ... + 1169889860.

It is an arithmetic number, because the mean of its divisors is an integer number (5069522692).

Almost surely, 2^21058017327 is an apocalyptic number.

21058017327 is a deficient number, since it is larger than the sum of its proper divisors (9359118825).

21058017327 is a wasteful number, since it uses less digits than its factorization.

21058017327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339779709 (or 2339779706 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 21058017327 in words is "twenty-one billion, fifty-eight million, seventeen thousand, three hundred twenty-seven".