89431783893859 has 32 divisors (see below), whose sum is σ = 103591030636800. Its totient is φ = 76304457507840.

The previous prime is 89431783893839. The next prime is 89431783893883. The reversal of 89431783893859 is 95839838713498.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 89431783893859 - 2²³ = 89431775505251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89431783893839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138034932 + ... + 138681310.

It is an arithmetic number, because the mean of its divisors is an integer number (3237219707400).

Almost surely, 2^{89431783893859} is an apocalyptic number.

89431783893859 is a deficient number, since it is larger than the sum of its proper divisors (14159246742941).

89431783893859 is a wasteful number, since it uses less digits than its factorization.

89431783893859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648483.

The product of its digits is 11287019520, while the sum is 85.

The spelling of 89431783893859 in words is "eighty-nine trillion, four hundred thirty-one billion, seven hundred eighty-three million, eight hundred ninety-three thousand, eight hundred fifty-nine".