1916494564343 has 4 divisors (see below), whose sum is σ = 1916497853808. Its totient is φ = 1916491274880.

The previous prime is 1916494564223. The next prime is 1916494564363. The reversal of 1916494564343 is 3434654946191.

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 1916494564343 - 2⁸ = 1916494564087 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 (1916494564363) 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 3 ways as a sum of consecutive naturals, for example, 509723 + ... + 2023068.

It is an arithmetic number, because the mean of its divisors is an integer number (479124463452).

Almost surely, 2^{1916494564343} is an apocalyptic number.

1916494564343 is a deficient number, since it is larger than the sum of its proper divisors (3289465).

1916494564343 is an equidigital number, since it uses as much as digits as its factorization.

1916494564343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289464.

The product of its digits is 33592320, while the sum is 59.

The spelling of 1916494564343 in words is "one trillion, nine hundred sixteen billion, four hundred ninety-four million, five hundred sixty-four thousand, three hundred forty-three".