1814235542749 has 4 divisors (see below), whose sum is σ = 2073412048864. Its totient is φ = 1555059036636.

The previous prime is 1814235542747. The next prime is 1814235542759. The reversal of 1814235542749 is 9472455324181.

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 not a de Polignac number, because 1814235542749 - 2¹ = 1814235542747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1814235542749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814235542747) 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, 129588253047 + ... + 129588253060.

It is an arithmetic number, because the mean of its divisors is an integer number (518353012216).

Almost surely, 2^{1814235542749} is an apocalyptic number.

It is an amenable number.

1814235542749 is a deficient number, since it is larger than the sum of its proper divisors (259176506115).

1814235542749 is an equidigital number, since it uses as much as digits as its factorization.

1814235542749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259176506114.

The product of its digits is 9676800, while the sum is 55.

The spelling of 1814235542749 in words is "one trillion, eight hundred fourteen billion, two hundred thirty-five million, five hundred forty-two thousand, seven hundred forty-nine".