18360970577 has 2 divisors, whose sum is σ = 18360970578. Its totient is φ = 18360970576.

The previous prime is 18360970567. The next prime is 18360970609. The reversal of 18360970577 is 77507906381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18233370961 + 127599616 = 135031^2 + 11296^2 .

It is a cyclic number.

It is not a de Polignac number, because 18360970577 - 2⁴ = 18360970561 is a prime.

It is not a weakly prime, because it can be changed into another prime (18360970567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9180485288 + 9180485289.

It is an arithmetic number, because the mean of its divisors is an integer number (9180485289).

Almost surely, 2^18360970577 is an apocalyptic number.

It is an amenable number.

18360970577 is a deficient number, since it is larger than the sum of its proper divisors (1).

18360970577 is an equidigital number, since it uses as much as digits as its factorization.

18360970577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 18360970577 in words is "eighteen billion, three hundred sixty million, nine hundred seventy thousand, five hundred seventy-seven".