1740438641818 has 16 divisors (see below), whose sum is σ = 2624418123264. Its totient is φ = 865632919840.

The previous prime is 1740438641813. The next prime is 1740438641827. The reversal of 1740438641818 is 8181468340471.

It is not an unprimeable number, because it can be changed into a prime (1740438641813) 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, 14201721 + ... + 14323747.

It is an arithmetic number, because the mean of its divisors is an integer number (164026132704).

Almost surely, 2^{1740438641818} is an apocalyptic number.

1740438641818 is a deficient number, since it is larger than the sum of its proper divisors (883979481446).

1740438641818 is a wasteful number, since it uses less digits than its factorization.

1740438641818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159557.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 1740438641818 in words is "one trillion, seven hundred forty billion, four hundred thirty-eight million, six hundred forty-one thousand, eight hundred eighteen".