18053139413 has 4 divisors (see below), whose sum is σ = 18087658368. Its totient is φ = 18018620460.

The previous prime is 18053139397. The next prime is 18053139431. The reversal of 18053139413 is 31493135081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31493135081 = 37 ⋅851165813.

It is a cyclic number.

It is not a de Polignac number, because 18053139413 - 2⁴ = 18053139397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18053139463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17258693 + ... + 17259738.

It is an arithmetic number, because the mean of its divisors is an integer number (4521914592).

Almost surely, 2^18053139413 is an apocalyptic number.

It is an amenable number.

18053139413 is a deficient number, since it is larger than the sum of its proper divisors (34518955).

18053139413 is an equidigital number, since it uses as much as digits as its factorization.

18053139413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34518954.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 18053139413 in words is "eighteen billion, fifty-three million, one hundred thirty-nine thousand, four hundred thirteen".