1813929499684 has 9 divisors (see below), whose sum is σ = 3174381338331. Its totient is φ = 906963403020.

The previous prime is 1813929499661. The next prime is 1813929499691. The reversal of 1813929499684 is 4869949293181.

The square root of 1813929499684 is 1346822.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×1813929499684³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2356939 + ... + 3030349.

Almost surely, 2^{1813929499684} is an apocalyptic number.

1813929499684 is the 1346822-nd square number.

It is an amenable number.

1813929499684 is a deficient number, since it is larger than the sum of its proper divisors (1360451838647).

1813929499684 is an frugal number, since it uses more digits than its factorization.

1813929499684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346826 (or 673413 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 73.

The spelling of 1813929499684 in words is "one trillion, eight hundred thirteen billion, nine hundred twenty-nine million, four hundred ninety-nine thousand, six hundred eighty-four".