1810013328653 has 4 divisors (see below), whose sum is σ = 1810017875580. Its totient is φ = 1810008781728.

The previous prime is 1810013328601. The next prime is 1810013328667. The reversal of 1810013328653 is 3568233100181.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1056592800649 + 753420528004 = 1027907^2 + 867998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1810013328653 - 2¹⁴ = 1810013312269 is a prime.

It is a super-2 number, since 2×1810013328653² (a number of 25 digits) contains 22 as substring.

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 1810013328653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1810013328553) 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, 1612250 + ... + 2493867.

It is an arithmetic number, because the mean of its divisors is an integer number (452504468895).

Almost surely, 2^{1810013328653} is an apocalyptic number.

It is an amenable number.

1810013328653 is a deficient number, since it is larger than the sum of its proper divisors (4546927).

1810013328653 is an equidigital number, since it uses as much as digits as its factorization.

1810013328653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546926.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 1810013328653 in words is "one trillion, eight hundred ten billion, thirteen million, three hundred twenty-eight thousand, six hundred fifty-three".