1825838685003 has 4 divisors (see below), whose sum is σ = 2434451580008. Its totient is φ = 1217225790000.

The previous prime is 1825838685001. The next prime is 1825838685037. The reversal of 1825838685003 is 3005868385281.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1825838685003 - 2¹ = 1825838685001 is a prime.

It is a super-2 number, since 2×1825838685003² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1825838685001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304306447498 + ... + 304306447503.

It is an arithmetic number, because the mean of its divisors is an integer number (608612895002).

Almost surely, 2^{1825838685003} is an apocalyptic number.

1825838685003 is a deficient number, since it is larger than the sum of its proper divisors (608612895005).

1825838685003 is an equidigital number, since it uses as much as digits as its factorization.

1825838685003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608612895004.

The product of its (nonzero) digits is 11059200, while the sum is 57.

The spelling of 1825838685003 in words is "one trillion, eight hundred twenty-five billion, eight hundred thirty-eight million, six hundred eighty-five thousand, three".