18541790419 has 4 divisors (see below), whose sum is σ = 18589456080. Its totient is φ = 18494124760.

The previous prime is 18541790389. The next prime is 18541790437. The reversal of 18541790419 is 91409714581.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91409714581 = 2417 ⋅37819493.

It is a cyclic number.

It is not a de Polignac number, because 18541790419 - 2⁵ = 18541790387 is a prime.

It is a super-3 number, since 3×18541790419³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18541790489) 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, 23832247 + ... + 23833024.

It is an arithmetic number, because the mean of its divisors is an integer number (4647364020).

Almost surely, 2^18541790419 is an apocalyptic number.

18541790419 is a deficient number, since it is larger than the sum of its proper divisors (47665661).

18541790419 is an equidigital number, since it uses as much as digits as its factorization.

18541790419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47665660.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 18541790419 in words is "eighteen billion, five hundred forty-one million, seven hundred ninety thousand, four hundred nineteen".