2190797378985 has 8 divisors (see below), whose sum is σ = 3505275806400. Its totient is φ = 1168425268784.

The previous prime is 2190797378953. The next prime is 2190797378993. The reversal of 2190797378985 is 5898737970912.

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 2190797378985 - 2⁵ = 2190797378953 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 73026579285 + ... + 73026579314.

It is an arithmetic number, because the mean of its divisors is an integer number (438159475800).

Almost surely, 2^{2190797378985} is an apocalyptic number.

It is an amenable number.

2190797378985 is a deficient number, since it is larger than the sum of its proper divisors (1314478427415).

2190797378985 is a wasteful number, since it uses less digits than its factorization.

2190797378985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146053158607.

The product of its (nonzero) digits is 480090240, while the sum is 75.

The spelling of 2190797378985 in words is "two trillion, one hundred ninety billion, seven hundred ninety-seven million, three hundred seventy-eight thousand, nine hundred eighty-five".