28885745731446 has 16 divisors (see below), whose sum is σ = 64190546070000. Its totient is φ = 9628581910464.

The previous prime is 28885745731411. The next prime is 28885745731459. The reversal of 28885745731446 is 64413754758882.

28885745731446 is a `hidden beast` number, since 2 + 8 + 8 + 8 + 5 + 7 + 4 + 573 + 1 + 4 + 46 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267460608571 + ... + 267460608678.

It is an arithmetic number, because the mean of its divisors is an integer number (4011909129375).

Almost surely, 2^{28885745731446} is an apocalyptic number.

28885745731446 is an abundant number, since it is smaller than the sum of its proper divisors (35304800338554).

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

28885745731446 is a wasteful number, since it uses less digits than its factorization.

28885745731446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534921217260 (or 534921217254 counting only the distinct ones).

The product of its digits is 1445068800, while the sum is 72.

The spelling of 28885745731446 in words is "twenty-eight trillion, eight hundred eighty-five billion, seven hundred forty-five million, seven hundred thirty-one thousand, four hundred forty-six".