805950089145 has 12 divisors (see below), whose sum is σ = 1396980154596. Its totient is φ = 429840047520.

The previous prime is 805950089143. The next prime is 805950089171. The reversal of 805950089145 is 541980059508.

805950089145 is a `hidden beast` number, since 8 + 0 + 5 + 9 + 500 + 8 + 91 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100329929001 + 705620160144 = 316749^2 + 840012^2 .

It is not a de Polignac number, because 805950089145 - 2¹ = 805950089143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 805950089091 and 805950089100.

It is not an unprimeable number, because it can be changed into a prime (805950089143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8955000946 + ... + 8955001035.

It is an arithmetic number, because the mean of its divisors is an integer number (116415012883).

Almost surely, 2^805950089145 is an apocalyptic number.

It is an amenable number.

805950089145 is a deficient number, since it is larger than the sum of its proper divisors (591030065451).

805950089145 is a wasteful number, since it uses less digits than its factorization.

805950089145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17910001992 (or 17910001989 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 54.

The spelling of 805950089145 in words is "eight hundred five billion, nine hundred fifty million, eighty-nine thousand, one hundred forty-five".