18038411253 has 6 divisors (see below), whose sum is σ = 26055482934. Its totient is φ = 12025607496.

The previous prime is 18038411243. The next prime is 18038411263. The reversal of 18038411253 is 35211483081.

18038411253 is a `hidden beast` number, since 18 + 0 + 384 + 11 + 253 = 666.

It is an interprime number because it is at equal distance from previous prime (18038411243) and next prime (18038411263).

It can be written as a sum of positive squares in only one way, i.e., 12841875684 + 5196535569 = 113322^2 + 72087^2 .

It is not a de Polignac number, because 18038411253 - 2¹² = 18038407157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18038411203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1002133950 + ... + 1002133967.

It is an arithmetic number, because the mean of its divisors is an integer number (4342580489).

Almost surely, 2^18038411253 is an apocalyptic number.

It is an amenable number.

18038411253 is a deficient number, since it is larger than the sum of its proper divisors (8017071681).

18038411253 is a wasteful number, since it uses less digits than its factorization.

18038411253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004267923 (or 2004267920 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 18038411253 in words is "eighteen billion, thirty-eight million, four hundred eleven thousand, two hundred fifty-three".