89147778836 has 48 divisors (see below), whose sum is σ = 161800309440. Its totient is φ = 42944878080.

The previous prime is 89147778833. The next prime is 89147778851. The reversal of 89147778836 is 63887774198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89147778833) 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 15 ways as a sum of consecutive naturals, for example, 6377591 + ... + 6391553.

It is an arithmetic number, because the mean of its divisors is an integer number (3370839780).

Almost surely, 2^89147778836 is an apocalyptic number.

It is an amenable number.

89147778836 is a deficient number, since it is larger than the sum of its proper divisors (72652530604).

89147778836 is a wasteful number, since it uses less digits than its factorization.

89147778836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14424 (or 14422 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 68.

The spelling of 89147778836 in words is "eighty-nine billion, one hundred forty-seven million, seven hundred seventy-eight thousand, eight hundred thirty-six".