989895226320 has 3200 divisors, whose sum is σ = 5017790840832. Its totient is φ = 173983334400.

The previous prime is 989895226277. The next prime is 989895226393. The reversal of 989895226320 is 23622598989.

989895226320 is a `hidden beast` number, since 9 + 8 + 9 + 89 + 5 + 226 + 320 = 666.

It is a super-2 number, since 2×989895226320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 5182697425 + ... + 5182697615.

Almost surely, 2^989895226320 is an apocalyptic number.

989895226320 is a gapful number since it is divisible by the number (90) 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 989895226320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508895420416).

989895226320 is an abundant number, since it is smaller than the sum of its proper divisors (4027895614512).

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

989895226320 is a wasteful number, since it uses less digits than its factorization.

989895226320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 989895226320 in words is "nine hundred eighty-nine billion, eight hundred ninety-five million, two hundred twenty-six thousand, three hundred twenty".