89188400801 has 4 divisors (see below), whose sum is σ = 89249869104. Its totient is φ = 89126932500.

The previous prime is 89188400723. The next prime is 89188400837. The reversal of 89188400801 is 10800488198.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89188400801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89188400401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30731975 + ... + 30734876.

It is an arithmetic number, because the mean of its divisors is an integer number (22312467276).

Almost surely, 2^89188400801 is an apocalyptic number.

It is an amenable number.

89188400801 is a deficient number, since it is larger than the sum of its proper divisors (61468303).

89188400801 is a wasteful number, since it uses less digits than its factorization.

89188400801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61468302.

The product of its (nonzero) digits is 147456, while the sum is 47.

Adding to 89188400801 its reverse (10800488198), we get a palindrome (99988888999).

The spelling of 89188400801 in words is "eighty-nine billion, one hundred eighty-eight million, four hundred thousand, eight hundred one".