28614900481 has 2 divisors, whose sum is σ = 28614900482. Its totient is φ = 28614900480.

The previous prime is 28614900451. The next prime is 28614900491. The reversal of 28614900481 is 18400941682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23641830081 + 4973070400 = 153759^2 + 70520^2 .

It is a cyclic number.

It is not a de Polignac number, because 28614900481 - 2²³ = 28606511873 is a prime.

It is a super-2 number, since 2×28614900481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28614900451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14307450240 + 14307450241.

It is an arithmetic number, because the mean of its divisors is an integer number (14307450241).

Almost surely, 2^28614900481 is an apocalyptic number.

It is an amenable number.

28614900481 is a deficient number, since it is larger than the sum of its proper divisors (1).

28614900481 is an equidigital number, since it uses as much as digits as its factorization.

28614900481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 28614900481 in words is "twenty-eight billion, six hundred fourteen million, nine hundred thousand, four hundred eighty-one".