21107577627 has 48 divisors (see below), whose sum is σ = 32281872480. Its totient is φ = 13274067456.

The previous prime is 21107577619. The next prime is 21107577653. The reversal of 21107577627 is 72677570112.

21107577627 is a `hidden beast` number, since 2 + 1 + 10 + 7 + 5 + 7 + 7 + 627 = 666.

It is not a de Polignac number, because 21107577627 - 2³ = 21107577619 is a prime.

It is a super-2 number, since 2×21107577627² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21107577607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1426873 + ... + 1441589.

It is an arithmetic number, because the mean of its divisors is an integer number (672539010).

Almost surely, 2^21107577627 is an apocalyptic number.

21107577627 is a deficient number, since it is larger than the sum of its proper divisors (11174294853).

21107577627 is a wasteful number, since it uses less digits than its factorization.

21107577627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14892 (or 14889 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 45.

The spelling of 21107577627 in words is "twenty-one billion, one hundred seven million, five hundred seventy-seven thousand, six hundred twenty-seven".