1298289288816 has 60 divisors (see below), whose sum is σ = 3912899667768. Its totient is φ = 399473626752.

The previous prime is 1298289288701. The next prime is 1298289288823. The reversal of 1298289288816 is 6188829828921.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346763430 + ... + 346767173.

Almost surely, 2^{1298289288816} is an apocalyptic number.

1298289288816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1298289288816 is an abundant number, since it is smaller than the sum of its proper divisors (2614610378952).

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

1298289288816 is a wasteful number, since it uses less digits than its factorization.

1298289288816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693530630 (or 693530621 counting only the distinct ones).

The product of its digits is 127401984, while the sum is 72.

The spelling of 1298289288816 in words is "one trillion, two hundred ninety-eight billion, two hundred eighty-nine million, two hundred eighty-eight thousand, eight hundred sixteen".