1028998866612 has 48 divisors (see below), whose sum is σ = 2459778414912. Its totient is φ = 334603825920.

The previous prime is 1028998866607. The next prime is 1028998866641. The reversal of 1028998866612 is 2166688998201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5783403 + ... + 5958669.

It is an arithmetic number, because the mean of its divisors is an integer number (51245383644).

Almost surely, 2^{1028998866612} is an apocalyptic number.

1028998866612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1028998866612 is an abundant number, since it is smaller than the sum of its proper divisors (1430779548300).

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

1028998866612 is a wasteful number, since it uses less digits than its factorization.

1028998866612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187248 (or 187246 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 66.

The spelling of 1028998866612 in words is "one trillion, twenty-eight billion, nine hundred ninety-eight million, eight hundred sixty-six thousand, six hundred twelve".