1989521152710 has 256 divisors, whose sum is σ = 5982040221696. Its totient is φ = 412304375808.

The previous prime is 1989521152681. The next prime is 1989521152711. The reversal of 1989521152710 is 172511259891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1989521152711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 39174694 + ... + 39225446.

It is an arithmetic number, because the mean of its divisors is an integer number (23367344616).

Almost surely, 2^{1989521152710} is an apocalyptic number.

1989521152710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1989521152710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2991020110848).

1989521152710 is an abundant number, since it is smaller than the sum of its proper divisors (3992519068986).

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

1989521152710 is a wasteful number, since it uses less digits than its factorization.

1989521152710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51039.

The product of its (nonzero) digits is 453600, while the sum is 51.

The spelling of 1989521152710 in words is "one trillion, nine hundred eighty-nine billion, five hundred twenty-one million, one hundred fifty-two thousand, seven hundred ten".