89839088640 has 528 divisors, whose sum is σ = 361156828032. Its totient is φ = 20223295488.

The previous prime is 89839088629. The next prime is 89839088663. The reversal of 89839088640 is 4688093898.

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 47 ways as a sum of consecutive naturals, for example, 21609442 + ... + 21613598.

It is an arithmetic number, because the mean of its divisors is an integer number (684009144).

Almost surely, 2^89839088640 is an apocalyptic number.

89839088640 is a gapful number since it is divisible by the number (80) 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 89839088640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180578414016).

89839088640 is an abundant number, since it is smaller than the sum of its proper divisors (271317739392).

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

89839088640 is a wasteful number, since it uses less digits than its factorization.

89839088640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 89839088640 in words is "eighty-nine billion, eight hundred thirty-nine million, eighty-eight thousand, six hundred forty".