8613261653 has 2 divisors, whose sum is σ = 8613261654. Its totient is φ = 8613261652.

The previous prime is 8613261637. The next prime is 8613261677. The reversal of 8613261653 is 3561623168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8114766724 + 498494929 = 90082^2 + 22327^2 .

It is a cyclic number.

It is not a de Polignac number, because 8613261653 - 2⁴ = 8613261637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8613261653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8613261253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4306630826 + 4306630827.

It is an arithmetic number, because the mean of its divisors is an integer number (4306630827).

Almost surely, 2^8613261653 is an apocalyptic number.

It is an amenable number.

8613261653 is a deficient number, since it is larger than the sum of its proper divisors (1).

8613261653 is an equidigital number, since it uses as much as digits as its factorization.

8613261653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 8613261653 is about 92807.6594522241. The cubic root of 8613261653 is about 2049.8521926349.

The spelling of 8613261653 in words is "eight billion, six hundred thirteen million, two hundred sixty-one thousand, six hundred fifty-three".