89445272440 has 16 divisors (see below), whose sum is σ = 201251863080. Its totient is φ = 35778108960.

The previous prime is 89445272407. The next prime is 89445272443. The reversal of 89445272440 is 4427254498.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89445272443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118065866 + ... + 1118065945.

Almost surely, 2^89445272440 is an apocalyptic number.

It is an amenable number.

89445272440 is an abundant number, since it is smaller than the sum of its proper divisors (111806590640).

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

89445272440 is a wasteful number, since it uses less digits than its factorization.

89445272440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236131822 (or 2236131818 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 49.

The spelling of 89445272440 in words is "eighty-nine billion, four hundred forty-five million, two hundred seventy-two thousand, four hundred forty".