8651081412 has 18 divisors (see below), whose sum is σ = 21868011438. Its totient is φ = 2883693792.

The previous prime is 8651081399. The next prime is 8651081419. The reversal of 8651081412 is 2141801568.

It can be written as a sum of positive squares in only one way, i.e., 4694168196 + 3956913216 = 68514^2 + 62904^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 240307817 = 8651081412 / (8 + 6 + 5 + 1 + 0 + 8 + 1 + 4 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (8651081419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120153873 + ... + 120153944.

Almost surely, 2^8651081412 is an apocalyptic number.

It is an amenable number.

8651081412 is an abundant number, since it is smaller than the sum of its proper divisors (13216930026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8651081412 is a wasteful number, since it uses less digits than its factorization.

8651081412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240307827 (or 240307822 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 8651081412 is about 93011.1897139264. The cubic root of 8651081412 is about 2052.8480273370.

The spelling of 8651081412 in words is "eight billion, six hundred fifty-one million, eighty-one thousand, four hundred twelve".