618480000581 has 2 divisors, whose sum is σ = 618480000582. Its totient is φ = 618480000580.

The previous prime is 618480000539. The next prime is 618480000599. The reversal of 618480000581 is 185000084816.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 541953630625 + 76526369956 = 736175^2 + 276634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-618480000581 is a prime.

It is a super-2 number, since 2×618480000581² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618480050581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309240000290 + 309240000291.

It is an arithmetic number, because the mean of its divisors is an integer number (309240000291).

Almost surely, 2^618480000581 is an apocalyptic number.

It is an amenable number.

618480000581 is a deficient number, since it is larger than the sum of its proper divisors (1).

618480000581 is an equidigital number, since it uses as much as digits as its factorization.

618480000581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 41.

The spelling of 618480000581 in words is "six hundred eighteen billion, four hundred eighty million, five hundred eighty-one", and thus it is an aban number.