89788517825 has 24 divisors (see below), whose sum is σ = 111898195200. Its totient is φ = 71469762560.

The previous prime is 89788517821. The next prime is 89788517837. The reversal of 89788517825 is 52871588798.

It is a happy number.

It is not a de Polignac number, because 89788517825 - 2² = 89788517821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89788517821) 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 23 ways as a sum of consecutive naturals, for example, 7875329 + ... + 7886721.

It is an arithmetic number, because the mean of its divisors is an integer number (4662424800).

Almost surely, 2^89788517825 is an apocalyptic number.

It is an amenable number.

89788517825 is a deficient number, since it is larger than the sum of its proper divisors (22109677375).

89788517825 is a wasteful number, since it uses less digits than its factorization.

89788517825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12961 (or 12956 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 68.

The spelling of 89788517825 in words is "eighty-nine billion, seven hundred eighty-eight million, five hundred seventeen thousand, eight hundred twenty-five".