1940994089918 has 128 divisors (see below), whose sum is σ = 3373533757440. Its totient is φ = 831196080000.

The previous prime is 1940994089893. The next prime is 1940994089927. The reversal of 1940994089918 is 8199804990491.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 392038343 + ... + 392043293.

It is an arithmetic number, because the mean of its divisors is an integer number (26355732480).

Almost surely, 2^{1940994089918} is an apocalyptic number.

1940994089918 is a deficient number, since it is larger than the sum of its proper divisors (1432539667522).

1940994089918 is a wasteful number, since it uses less digits than its factorization.

1940994089918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254.

The product of its (nonzero) digits is 60466176, while the sum is 71.

The spelling of 1940994089918 in words is "one trillion, nine hundred forty billion, nine hundred ninety-four million, eighty-nine thousand, nine hundred eighteen".