18157436269041 has 4 divisors (see below), whose sum is σ = 24209915025392. Its totient is φ = 12104957512692.

The previous prime is 18157436269039. The next prime is 18157436269043. The reversal of 18157436269041 is 14096263475181.

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.

It is an interprime number because it is at equal distance from previous prime (18157436269039) and next prime (18157436269043).

It is not a de Polignac number, because 18157436269041 - 2¹ = 18157436269039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18157436269043) 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, 3026239378171 + ... + 3026239378176.

It is an arithmetic number, because the mean of its divisors is an integer number (6052478756348).

It is a 1-persistent number, because it is pandigital, but 2⋅18157436269041 = 36314872538082 is not.

Almost surely, 2^{18157436269041} is an apocalyptic number.

It is an amenable number.

18157436269041 is a deficient number, since it is larger than the sum of its proper divisors (6052478756351).

18157436269041 is an equidigital number, since it uses as much as digits as its factorization.

18157436269041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052478756350.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 18157436269041 in words is "eighteen trillion, one hundred fifty-seven billion, four hundred thirty-six million, two hundred sixty-nine thousand, forty-one".