1940188300989 has 8 divisors (see below), whose sum is σ = 2586946894752. Its totient is φ = 1293444287280.

The previous prime is 1940188300987. The next prime is 1940188300993. The reversal of 1940188300989 is 9890038810491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1940188300989 - 2¹ = 1940188300987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940188300987) 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, 3330639 + ... + 3869564.

It is an arithmetic number, because the mean of its divisors is an integer number (323368361844).

Almost surely, 2^{1940188300989} is an apocalyptic number.

It is an amenable number.

1940188300989 is a deficient number, since it is larger than the sum of its proper divisors (646758593763).

1940188300989 is an equidigital number, since it uses as much as digits as its factorization.

1940188300989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290027.

The product of its (nonzero) digits is 4478976, while the sum is 60.

The spelling of 1940188300989 in words is "one trillion, nine hundred forty billion, one hundred eighty-eight million, three hundred thousand, nine hundred eighty-nine".