89034578789 has 16 divisors (see below), whose sum is σ = 101940031872. Its totient is φ = 77129203008.

The previous prime is 89034578741. The next prime is 89034578791. The reversal of 89034578789 is 98787543098.

It is a de Polignac number, because none of the positive numbers 2^k-89034578789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89034578719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793347 + ... + 2825040.

It is an arithmetic number, because the mean of its divisors is an integer number (6371251992).

Almost surely, 2^89034578789 is an apocalyptic number.

It is an amenable number.

89034578789 is a deficient number, since it is larger than the sum of its proper divisors (12905453083).

89034578789 is a wasteful number, since it uses less digits than its factorization.

89034578789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618476.

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 89034578789 in words is "eighty-nine billion, thirty-four million, five hundred seventy-eight thousand, seven hundred eighty-nine".