1028897299136 has 336 divisors, whose sum is σ = 2489989911552. Its totient is φ = 420124723200.

The previous prime is 1028897299051. The next prime is 1028897299139. The reversal of 1028897299136 is 6319927988201.

It is not an unprimeable number, because it can be changed into a prime (1028897299139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2203205975 + ... + 2203206441.

Almost surely, 2^{1028897299136} is an apocalyptic number.

1028897299136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028897299136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244994955776).

1028897299136 is an abundant number, since it is smaller than the sum of its proper divisors (1461092612416).

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

1028897299136 is a wasteful number, since it uses less digits than its factorization.

1028897299136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 1028897299136 in words is "one trillion, twenty-eight billion, eight hundred ninety-seven million, two hundred ninety-nine thousand, one hundred thirty-six".