1944942188418 has 12 divisors (see below), whose sum is σ = 4214041408278. Its totient is φ = 648314062800.

The previous prime is 1944942188401. The next prime is 1944942188461. The reversal of 1944942188418 is 8148812494491.

1944942188418 is a `hidden beast` number, since 1 + 9 + 4 + 494 + 21 + 88 + 41 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1563792767289 + 381149421129 = 1250517^2 + 617373^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54026171883 + ... + 54026171918.

Almost surely, 2^{1944942188418} is an apocalyptic number.

1944942188418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1944942188418 is an abundant number, since it is smaller than the sum of its proper divisors (2269099219860).

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

1944942188418 is a wasteful number, since it uses less digits than its factorization.

1944942188418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108052343809 (or 108052343806 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 63.

The spelling of 1944942188418 in words is "one trillion, nine hundred forty-four billion, nine hundred forty-two million, one hundred eighty-eight thousand, four hundred eighteen".