20567460928 has 28 divisors (see below), whose sum is σ = 46644064192. Its totient is φ = 8814625920.

The previous prime is 20567460923. The next prime is 20567460971. The reversal of 20567460928 is 82906476502.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (20567460923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22954308 + ... + 22955203.

Almost surely, 2^20567460928 is an apocalyptic number.

20567460928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20567460928 is an abundant number, since it is smaller than the sum of its proper divisors (26076603264).

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

20567460928 is an equidigital number, since it uses as much as digits as its factorization.

20567460928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45909530 (or 45909520 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 20567460928 in words is "twenty billion, five hundred sixty-seven million, four hundred sixty thousand, nine hundred twenty-eight".