90489637043200 has 132 divisors (see below), whose sum is σ = 224336431337152. Its totient is φ = 36190738022400.

The previous prime is 90489637043189. The next prime is 90489637043203. The reversal of 90489637043200 is 234073698409.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90489637043203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183484945 + ... + 183977455.

Almost surely, 2^{90489637043200} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90489637043200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112168215668576).

90489637043200 is an abundant number, since it is smaller than the sum of its proper divisors (133846794293952).

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

90489637043200 is a wasteful number, since it uses less digits than its factorization.

90489637043200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499718 (or 499695 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 90489637043200 in words is "ninety trillion, four hundred eighty-nine billion, six hundred thirty-seven million, forty-three thousand, two hundred".