1028775763398 has 16 divisors (see below), whose sum is σ = 2057564272176. Its totient is φ = 342923130240.

The previous prime is 1028775763369. The next prime is 1028775763423. The reversal of 1028775763398 is 8933675778201.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 759538 + ... + 1623098.

It is an arithmetic number, because the mean of its divisors is an integer number (128597767011).

Almost surely, 2^{1028775763398} is an apocalyptic number.

1028775763398 is an abundant number, since it is smaller than the sum of its proper divisors (1028788508778).

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

1028775763398 is a wasteful number, since it uses less digits than its factorization.

1028775763398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062119.

The product of its (nonzero) digits is 106686720, while the sum is 66.

The spelling of 1028775763398 in words is "one trillion, twenty-eight billion, seven hundred seventy-five million, seven hundred sixty-three thousand, three hundred ninety-eight".