28148204927 has 2 divisors, whose sum is σ = 28148204928. Its totient is φ = 28148204926.

The previous prime is 28148204899. The next prime is 28148204957. The reversal of 28148204927 is 72940284182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28148204927 - 2¹² = 28148200831 is a prime.

It is a super-2 number, since 2×28148204927² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28148204957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14074102463 + 14074102464.

It is an arithmetic number, because the mean of its divisors is an integer number (14074102464).

Almost surely, 2^28148204927 is an apocalyptic number.

28148204927 is a deficient number, since it is larger than the sum of its proper divisors (1).

28148204927 is an equidigital number, since it uses as much as digits as its factorization.

28148204927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 28148204927 in words is "twenty-eight billion, one hundred forty-eight million, two hundred four thousand, nine hundred twenty-seven".