1940021623799 has 12 divisors (see below), whose sum is σ = 2355261054384. Its totient is φ = 1565059459584.

The previous prime is 1940021623711. The next prime is 1940021623801. The reversal of 1940021623799 is 9973261200491.

It is not a de Polignac number, because 1940021623799 - 2²⁰ = 1940020575223 is a prime.

It is a super-3 number, since 3×1940021623799³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1940021623799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940021620799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479489234 + ... + 479493279.

It is an arithmetic number, because the mean of its divisors is an integer number (196271754532).

Almost surely, 2^{1940021623799} is an apocalyptic number.

1940021623799 is a deficient number, since it is larger than the sum of its proper divisors (415239430585).

1940021623799 is an equidigital number, since it uses as much as digits as its factorization.

1940021623799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958982554 (or 958982537 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 1940021623799 in words is "one trillion, nine hundred forty billion, twenty-one million, six hundred twenty-three thousand, seven hundred ninety-nine".