89405186049 has 15 divisors (see below), whose sum is σ = 133559915313. Its totient is φ = 59601663324.

The previous prime is 89405185997. The next prime is 89405186077. The reversal of 89405186049 is 94068150498.

The square root of 89405186049 is 299007.

It is a perfect power (a square), and thus also a powerful number.

89405186049 is a `hidden beast` number, since 89 + 4 + 0 + 518 + 6 + 0 + 49 = 666.

It is not a de Polignac number, because 89405186049 - 2²¹ = 89403088897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89405185986 and 89405186004.

It is not an unprimeable number, because it can be changed into a prime (89405186089) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2674452 + ... + 2707674.

Almost surely, 2^89405186049 is an apocalyptic number.

89405186049 is the 299007-th square number.

89405186049 is the 149504-th centered octagonal number.

It is an amenable number.

89405186049 is a deficient number, since it is larger than the sum of its proper divisors (44154729264).

89405186049 is an frugal number, since it uses more digits than its factorization.

89405186049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66458 (or 33226 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

It can be divided in two parts, 894051 and 86049, that added together give a square (980100 = 990²).

The spelling of 89405186049 in words is "eighty-nine billion, four hundred five million, one hundred eighty-six thousand, forty-nine".