1990118860799 has 8 divisors (see below), whose sum is σ = 2011717392432. Its totient is φ = 1968617401920.

The previous prime is 1990118860783. The next prime is 1990118860813. The reversal of 1990118860799 is 9970688110991.

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

It is a cyclic number.

It is not a de Polignac number, because 1990118860799 - 2⁴ = 1990118860783 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 (1990118865799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24226964 + ... + 24308969.

It is an arithmetic number, because the mean of its divisors is an integer number (251464674054).

Almost surely, 2^{1990118860799} is an apocalyptic number.

1990118860799 is a deficient number, since it is larger than the sum of its proper divisors (21598531633).

1990118860799 is a wasteful number, since it uses less digits than its factorization.

1990118860799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48536377.

The product of its (nonzero) digits is 17635968, while the sum is 68.

The spelling of 1990118860799 in words is "one trillion, nine hundred ninety billion, one hundred eighteen million, eight hundred sixty thousand, seven hundred ninety-nine".