1028335745992 has 8 divisors (see below), whose sum is σ = 1928129523750. Its totient is φ = 514167872992.

The previous prime is 1028335745917. The next prime is 1028335746001. The reversal of 1028335745992 is 2995475338201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 705341303716 + 322994442276 = 839846^2 + 568326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64270984117 + ... + 64270984132.

Almost surely, 2^{1028335745992} is an apocalyptic number.

It is an amenable number.

1028335745992 is a deficient number, since it is larger than the sum of its proper divisors (899793777758).

1028335745992 is a wasteful number, since it uses less digits than its factorization.

1028335745992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128541968255 (or 128541968251 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 1028335745992 in words is "one trillion, twenty-eight billion, three hundred thirty-five million, seven hundred forty-five thousand, nine hundred ninety-two".