40185000259 has 2 divisors, whose sum is σ = 40185000260. Its totient is φ = 40185000258.

The previous prime is 40185000253. The next prime is 40185000311. The reversal of 40185000259 is 95200058104.

40185000259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40185000259 - 2²¹ = 40182903107 is a prime.

It is a super-2 number, since 2×40185000259² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40185000253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20092500129 + 20092500130.

It is an arithmetic number, because the mean of its divisors is an integer number (20092500130).

Almost surely, 2^40185000259 is an apocalyptic number.

40185000259 is a deficient number, since it is larger than the sum of its proper divisors (1).

40185000259 is an equidigital number, since it uses as much as digits as its factorization.

40185000259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 40185000259 in words is "forty billion, one hundred eighty-five million, two hundred fifty-nine", and thus it is an aban number.