1999762072783 has 4 divisors (see below), whose sum is σ = 2019561697368. Its totient is φ = 1979962448200.

The previous prime is 1999762072727. The next prime is 1999762072837. The reversal of 1999762072783 is 3872702679991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1999762072783 - 2⁹ = 1999762072271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999762072723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9899812141 + ... + 9899812342.

It is an arithmetic number, because the mean of its divisors is an integer number (504890424342).

Almost surely, 2^{1999762072783} is an apocalyptic number.

1999762072783 is a deficient number, since it is larger than the sum of its proper divisors (19799624585).

1999762072783 is a wasteful number, since it uses less digits than its factorization.

1999762072783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19799624584.

The product of its (nonzero) digits is 144027072, while the sum is 70.

The spelling of 1999762072783 in words is "one trillion, nine hundred ninety-nine billion, seven hundred sixty-two million, seventy-two thousand, seven hundred eighty-three".