1818819696 has 40 divisors (see below), whose sum is σ = 4813223184. Its totient is φ = 591485440.

The previous prime is 1818819661. The next prime is 1818819697. The reversal of 1818819696 is 6969188181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818819697) 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, 460131 + ... + 464066.

Almost surely, 2^1818819696 is an apocalyptic number.

1818819696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1818819696 is an abundant number, since it is smaller than the sum of its proper divisors (2994403488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1818819696 is a wasteful number, since it uses less digits than its factorization.

1818819696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924249 (or 924243 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 57.

The square root of 1818819696 is about 42647.6223956272. The cubic root of 1818819696 is about 1220.6651608839.

The spelling of 1818819696 in words is "one billion, eight hundred eighteen million, eight hundred nineteen thousand, six hundred ninety-six".