28052448785465 has 16 divisors (see below), whose sum is σ = 36257872929600. Its totient is φ = 20712524444352.

The previous prime is 28052448785453. The next prime is 28052448785509. The reversal of 28052448785465 is 56458784425082.

It is not a de Polignac number, because 28052448785465 - 2²⁶ = 28052381676601 is a prime.

It is a super-2 number, since 2×28052448785465² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28052448785395 and 28052448785404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32171075 + ... + 33031544.

It is an arithmetic number, because the mean of its divisors is an integer number (2266117058100).

Almost surely, 2^{28052448785465} is an apocalyptic number.

It is an amenable number.

28052448785465 is a deficient number, since it is larger than the sum of its proper divisors (8205424144135).

28052448785465 is a wasteful number, since it uses less digits than its factorization.

28052448785465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65209256.

The product of its (nonzero) digits is 688128000, while the sum is 68.

The spelling of 28052448785465 in words is "twenty-eight trillion, fifty-two billion, four hundred forty-eight million, seven hundred eighty-five thousand, four hundred sixty-five".