89964779369 has 16 divisors (see below), whose sum is σ = 90888652800. Its totient is φ = 89047178304.

The previous prime is 89964779363. The next prime is 89964779393. The reversal of 89964779369 is 96397746998.

It is not a de Polignac number, because 89964779369 - 2¹² = 89964775273 is a prime.

It is a super-3 number, since 3×89964779369³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89964779369.

It is not an unprimeable number, because it can be changed into a prime (89964779363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31709819 + ... + 31712655.

It is an arithmetic number, because the mean of its divisors is an integer number (5680540800).

Almost surely, 2^89964779369 is an apocalyptic number.

It is an amenable number.

89964779369 is a deficient number, since it is larger than the sum of its proper divisors (923873431).

89964779369 is a wasteful number, since it uses less digits than its factorization.

89964779369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832.

The product of its digits is 1111065984, while the sum is 77.

The spelling of 89964779369 in words is "eighty-nine billion, nine hundred sixty-four million, seven hundred seventy-nine thousand, three hundred sixty-nine".