89944490368 has 192 divisors, whose sum is σ = 194086277280. Its totient is φ = 41492971520.

The previous prime is 89944490359. The next prime is 89944490369. The reversal of 89944490368 is 86309444998.

It is a happy number.

It is a super-2 number, since 2×89944490368² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89944490369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254800080 + ... + 254800432.

Almost surely, 2^89944490368 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 89944490368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97043138640).

89944490368 is an abundant number, since it is smaller than the sum of its proper divisors (104141786912).

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

89944490368 is a wasteful number, since it uses less digits than its factorization.

89944490368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 64.

The spelling of 89944490368 in words is "eighty-nine billion, nine hundred forty-four million, four hundred ninety thousand, three hundred sixty-eight".