1808880268813 has 8 divisors (see below), whose sum is σ = 1839595975200. Its totient is φ = 1778166453168.

The previous prime is 1808880268801. The next prime is 1808880268823. The reversal of 1808880268813 is 3188620888081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1808880268813 - 2¹⁷ = 1808880137741 is a prime.

It is a super-2 number, since 2×1808880268813² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808880268823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528270 + ... + 2439952.

It is an arithmetic number, because the mean of its divisors is an integer number (229949496900).

Almost surely, 2^{1808880268813} is an apocalyptic number.

It is an amenable number.

1808880268813 is a deficient number, since it is larger than the sum of its proper divisors (30715706387).

1808880268813 is an equidigital number, since it uses as much as digits as its factorization.

1808880268813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945371.

The product of its (nonzero) digits is 9437184, while the sum is 61.

The spelling of 1808880268813 in words is "one trillion, eight hundred eight billion, eight hundred eighty million, two hundred sixty-eight thousand, eight hundred thirteen".