8450313561 has 36 divisors (see below), whose sum is σ = 12728047332. Its totient is φ = 5398519104.

The previous prime is 8450313559. The next prime is 8450313583. The reversal of 8450313561 is 1653130548.

8450313561 is a `hidden beast` number, since 84 + 5 + 0 + 3 + 13 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7126736400 + 1323577161 = 84420^2 + 36381^2 .

It is not a de Polignac number, because 8450313561 - 2¹ = 8450313559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8450313511) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1492011 + ... + 1497663.

Almost surely, 2^8450313561 is an apocalyptic number.

It is an amenable number.

8450313561 is a deficient number, since it is larger than the sum of its proper divisors (4277733771).

8450313561 is a wasteful number, since it uses less digits than its factorization.

8450313561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830 (or 5760 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 8450313561 is about 91925.5870854247. The cubic root of 8450313561 is about 2036.8432498896.

The spelling of 8450313561 in words is "eight billion, four hundred fifty million, three hundred thirteen thousand, five hundred sixty-one".