20727267652 has 24 divisors (see below), whose sum is σ = 44643346496. Its totient is φ = 8199798048.

The previous prime is 20727267619. The next prime is 20727267661. The reversal of 20727267652 is 25676272702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28471158 + ... + 28471885.

Almost surely, 2^20727267652 is an apocalyptic number.

It is an amenable number.

20727267652 is an abundant number, since it is smaller than the sum of its proper divisors (23916078844).

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

20727267652 is a wasteful number, since it uses less digits than its factorization.

20727267652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56943067 (or 56943065 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 20727267652 in words is "twenty billion, seven hundred twenty-seven million, two hundred sixty-seven thousand, six hundred fifty-two".