1489965995520 has 1800 divisors, whose sum is σ = 6052251943584. Its totient is φ = 350082957312.

The previous prime is 1489965995513. The next prime is 1489965995569. The reversal of 1489965995520 is 255995699841.

1489965995520 is a `hidden beast` number, since 1 + 4 + 8 + 9 + 9 + 6 + 5 + 9 + 95 + 520 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 31701404137 + ... + 31701404183.

Almost surely, 2^{1489965995520} is an apocalyptic number.

1489965995520 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 1489965995520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3026125971792).

1489965995520 is an abundant number, since it is smaller than the sum of its proper divisors (4562285948064).

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

1489965995520 is an equidigital number, since it uses as much as digits as its factorization.

1489965995520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 314928000, while the sum is 72.

The spelling of 1489965995520 in words is "one trillion, four hundred eighty-nine billion, nine hundred sixty-five million, nine hundred ninety-five thousand, five hundred twenty".