2316786561 has 12 divisors (see below), whose sum is σ = 3436915092. Its totient is φ = 1502780256.

The previous prime is 2316786559. The next prime is 2316786583. The reversal of 2316786561 is 1656876132.

2316786561 is a `hidden beast` number, since 2 + 3 + 1 + 6 + 7 + 86 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2039064336 + 277722225 = 45156^2 + 16665^2 .

It is not a de Polignac number, because 2316786561 - 2¹ = 2316786559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2316786761) 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, 3478326 + ... + 3478991.

It is an arithmetic number, because the mean of its divisors is an integer number (286409591).

Almost surely, 2^2316786561 is an apocalyptic number.

It is an amenable number.

2316786561 is a deficient number, since it is larger than the sum of its proper divisors (1120128531).

2316786561 is a wasteful number, since it uses less digits than its factorization.

2316786561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6957360 (or 6957357 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 2316786561 is about 48133.0090582336. The cubic root of 2316786561 is about 1323.2096976171.

The spelling of 2316786561 in words is "two billion, three hundred sixteen million, seven hundred eighty-six thousand, five hundred sixty-one".