2103736818 has 16 divisors (see below), whose sum is σ = 4343198976. Its totient is φ = 678624720.

The previous prime is 2103736813. The next prime is 2103736823. The reversal of 2103736818 is 8186373012.

It is an interprime number because it is at equal distance from previous prime (2103736813) and next prime (2103736823).

It is not an unprimeable number, because it can be changed into a prime (2103736813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5655021 + ... + 5655392.

It is an arithmetic number, because the mean of its divisors is an integer number (271449936).

Almost surely, 2^2103736818 is an apocalyptic number.

2103736818 is an abundant number, since it is smaller than the sum of its proper divisors (2239462158).

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

2103736818 is a wasteful number, since it uses less digits than its factorization.

2103736818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310449.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2103736818 is about 45866.5108548710. The cubic root of 2103736818 is about 1281.3382849402.

The spelling of 2103736818 in words is "two billion, one hundred three million, seven hundred thirty-six thousand, eight hundred eighteen".