89563841840 has 160 divisors (see below), whose sum is σ = 239008845312. Its totient is φ = 31151788800.

The previous prime is 89563841837. The next prime is 89563841869. The reversal of 89563841840 is 4814836598.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2430755 + ... + 2467325.

Almost surely, 2^89563841840 is an apocalyptic number.

89563841840 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 89563841840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119504422656).

89563841840 is an abundant number, since it is smaller than the sum of its proper divisors (149445003472).

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

89563841840 is a wasteful number, since it uses less digits than its factorization.

89563841840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36640 (or 36612 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 89563841840 in words is "eighty-nine billion, five hundred sixty-three million, eight hundred forty-one thousand, eight hundred forty".