1028547081392 has 20 divisors (see below), whose sum is σ = 2022553404696. Its totient is φ = 506597815680.

The previous prime is 1028547081391. The next prime is 1028547081403. The reversal of 1028547081392 is 2931807458201.

It is a self number, because there is not a number n which added to its sum of digits gives 1028547081392.

It is not an unprimeable number, because it can be changed into a prime (1028547081391) 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, 479731709 + ... + 479733852.

Almost surely, 2^{1028547081392} is an apocalyptic number.

It is an amenable number.

1028547081392 is a deficient number, since it is larger than the sum of its proper divisors (994006323304).

1028547081392 is an equidigital number, since it uses as much as digits as its factorization.

1028547081392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959465636 (or 959465630 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 1028547081392 in words is "one trillion, twenty-eight billion, five hundred forty-seven million, eighty-one thousand, three hundred ninety-two".