1836818749818 has 96 divisors (see below), whose sum is σ = 4565865036096. Its totient is φ = 528665854464.

The previous prime is 1836818749811. The next prime is 1836818749823. The reversal of 1836818749818 is 8189478186381.

1836818749818 is a `hidden beast` number, since 1 + 8 + 368 + 187 + 4 + 9 + 81 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1836818749811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 767980 + ... + 2064807.

It is an arithmetic number, because the mean of its divisors is an integer number (47561094126).

Almost surely, 2^{1836818749818} is an apocalyptic number.

1836818749818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1836818749818 is an abundant number, since it is smaller than the sum of its proper divisors (2729046286278).

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

1836818749818 is a wasteful number, since it uses less digits than its factorization.

1836818749818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832988 (or 2832985 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 72.

The spelling of 1836818749818 in words is "one trillion, eight hundred thirty-six billion, eight hundred eighteen million, seven hundred forty-nine thousand, eight hundred eighteen".