1816099713 has 6 divisors (see below), whose sum is σ = 2623255154. Its totient is φ = 1210733136.

The previous prime is 1816099687. The next prime is 1816099717. The reversal of 1816099713 is 3179906181.

It can be written as a sum of positive squares in only one way, i.e., 1673464464 + 142635249 = 40908^2 + 11943^2 .

It is not a de Polignac number, because 1816099713 - 2⁸ = 1816099457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1816099717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100894420 + ... + 100894437.

Almost surely, 2^1816099713 is an apocalyptic number.

It is an amenable number.

1816099713 is a deficient number, since it is larger than the sum of its proper divisors (807155441).

1816099713 is a wasteful number, since it uses less digits than its factorization.

1816099713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201788863 (or 201788860 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 1816099713 is about 42615.7214300075. The cubic root of 1816099713 is about 1220.0563695624.

The spelling of 1816099713 in words is "one billion, eight hundred sixteen million, ninety-nine thousand, seven hundred thirteen".