1989302822760 has 128 divisors (see below), whose sum is σ = 6517789286400. Its totient is φ = 481711253760.

The previous prime is 1989302822737. The next prime is 1989302822813. The reversal of 1989302822760 is 672282039891.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1989302822760.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321321 + ... + 2020359.

It is an arithmetic number, because the mean of its divisors is an integer number (50920228800).

Almost surely, 2^{1989302822760} is an apocalyptic number.

1989302822760 is a gapful number since it is divisible by the number (10) 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 1989302822760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3258894643200).

1989302822760 is an abundant number, since it is smaller than the sum of its proper divisors (4528486463640).

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

1989302822760 is a wasteful number, since it uses less digits than its factorization.

1989302822760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699951 (or 1699947 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 1989302822760 in words is "one trillion, nine hundred eighty-nine billion, three hundred two million, eight hundred twenty-two thousand, seven hundred sixty".