8864741861 has 2 divisors, whose sum is σ = 8864741862. Its totient is φ = 8864741860.

The previous prime is 8864741843. The next prime is 8864741869. The reversal of 8864741861 is 1681474688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4705136836 + 4159605025 = 68594^2 + 64495^2 .

It is a cyclic number.

It is not a de Polignac number, because 8864741861 - 2¹⁴ = 8864725477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8864741869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4432370930 + 4432370931.

It is an arithmetic number, because the mean of its divisors is an integer number (4432370931).

Almost surely, 2^8864741861 is an apocalyptic number.

It is an amenable number.

8864741861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8864741861 is an equidigital number, since it uses as much as digits as its factorization.

8864741861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 53.

The square root of 8864741861 is about 94152.7581167966. The cubic root of 8864741861 is about 2069.6108754583.

The spelling of 8864741861 in words is "eight billion, eight hundred sixty-four million, seven hundred forty-one thousand, eight hundred sixty-one".