1814788403513 has 24 divisors (see below), whose sum is σ = 1944384099840. Its totient is φ = 1692683263040.

The previous prime is 1814788403429. The next prime is 1814788403521. The reversal of 1814788403513 is 3153048874181.

It is a happy number.

It is not a de Polignac number, because 1814788403513 - 2⁸ = 1814788403257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1814788403573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44724128 + ... + 44764686.

It is an arithmetic number, because the mean of its divisors is an integer number (81016004160).

Almost surely, 2^{1814788403513} is an apocalyptic number.

It is an amenable number.

1814788403513 is a deficient number, since it is larger than the sum of its proper divisors (129595696327).

1814788403513 is a wasteful number, since it uses less digits than its factorization.

1814788403513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42709 (or 42686 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 1814788403513 in words is "one trillion, eight hundred fourteen billion, seven hundred eighty-eight million, four hundred three thousand, five hundred thirteen".