86264877761 has 2 divisors, whose sum is σ = 86264877762. Its totient is φ = 86264877760.

The previous prime is 86264877749. The next prime is 86264877781. The reversal of 86264877761 is 16777846268.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56415750400 + 29849127361 = 237520^2 + 172769^2 .

It is a cyclic number.

It is not a de Polignac number, because 86264877761 - 2²⁶ = 86197768897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86264877694 and 86264877703.

It is not a weakly prime, because it can be changed into another prime (86264877781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43132438880 + 43132438881.

It is an arithmetic number, because the mean of its divisors is an integer number (43132438881).

Almost surely, 2^86264877761 is an apocalyptic number.

It is an amenable number.

86264877761 is a deficient number, since it is larger than the sum of its proper divisors (1).

86264877761 is an equidigital number, since it uses as much as digits as its factorization.

86264877761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37933056, while the sum is 62.

The spelling of 86264877761 in words is "eighty-six billion, two hundred sixty-four million, eight hundred seventy-seven thousand, seven hundred sixty-one".