18055874357 has 2 divisors, whose sum is σ = 18055874358. Its totient is φ = 18055874356.

The previous prime is 18055874327. The next prime is 18055874399. The reversal of 18055874357 is 75347855081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16027813201 + 2028061156 = 126601^2 + 45034^2 .

It is an emirp because it is prime and its reverse (75347855081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18055874357 - 2⁶ = 18055874293 is a prime.

It is a super-3 number, since 3×18055874357³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18055874299 and 18055874308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18055874327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027937178 + 9027937179.

It is an arithmetic number, because the mean of its divisors is an integer number (9027937179).

Almost surely, 2^18055874357 is an apocalyptic number.

It is an amenable number.

18055874357 is a deficient number, since it is larger than the sum of its proper divisors (1).

18055874357 is an equidigital number, since it uses as much as digits as its factorization.

18055874357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704000, while the sum is 53.

The spelling of 18055874357 in words is "eighteen billion, fifty-five million, eight hundred seventy-four thousand, three hundred fifty-seven".