1813328876 has 12 divisors (see below), whose sum is σ = 3174100440. Its totient is φ = 906443040.

The previous prime is 1813328873. The next prime is 1813328917. The reversal of 1813328876 is 6788233181.

It is a happy number.

It is a super-2 number, since 2×1813328876² = 6576323225070846752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1813328876.

It is not an unprimeable number, because it can be changed into a prime (1813328873) 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, 36185 + ... + 70256.

It is an arithmetic number, because the mean of its divisors is an integer number (264508370).

Almost surely, 2^1813328876 is an apocalyptic number.

It is an amenable number.

1813328876 is a deficient number, since it is larger than the sum of its proper divisors (1360771564).

1813328876 is a wasteful number, since it uses less digits than its factorization.

1813328876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110704 (or 110702 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 1813328876 is about 42583.1994570629. The cubic root of 1813328876 is about 1219.4355706744.

The spelling of 1813328876 in words is "one billion, eight hundred thirteen million, three hundred twenty-eight thousand, eight hundred seventy-six".