90305327644 has 48 divisors (see below), whose sum is σ = 182110781440. Its totient is φ = 38381091840.

The previous prime is 90305327641. The next prime is 90305327681. The reversal of 90305327644 is 44672350309.

It is a super-3 number, since 3×90305327644³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90305327644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90305327641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12054652 + ... + 12062140.

Almost surely, 2^90305327644 is an apocalyptic number.

It is an amenable number.

90305327644 is an abundant number, since it is smaller than the sum of its proper divisors (91805453796).

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

90305327644 is a wasteful number, since it uses less digits than its factorization.

90305327644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11018 (or 11016 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 90305327644 in words is "ninety billion, three hundred five million, three hundred twenty-seven thousand, six hundred forty-four".