1820618088817 has 16 divisors (see below), whose sum is σ = 1987655731200. Its totient is φ = 1653835352400.

The previous prime is 1820618088721. The next prime is 1820618088833. The reversal of 1820618088817 is 7188808160281.

It is a de Polignac number, because none of the positive numbers 2^k-1820618088817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1820618008817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180414942 + ... + 180425032.

It is an arithmetic number, because the mean of its divisors is an integer number (124228483200).

Almost surely, 2^{1820618088817} is an apocalyptic number.

It is an amenable number.

1820618088817 is a deficient number, since it is larger than the sum of its proper divisors (167037642383).

1820618088817 is a wasteful number, since it uses less digits than its factorization.

1820618088817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21084.

The product of its (nonzero) digits is 2752512, while the sum is 58.

The spelling of 1820618088817 in words is "one trillion, eight hundred twenty billion, six hundred eighteen million, eighty-eight thousand, eight hundred seventeen".