1916543875753 has 4 divisors (see below), whose sum is σ = 2063970327748. Its totient is φ = 1769117423760.

The previous prime is 1916543875751. The next prime is 1916543875769. The reversal of 1916543875753 is 3575783456191.

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

It can be written as a sum of positive squares in 2 ways, for example, as 550188612009 + 1366355263744 = 741747^2 + 1168912^2 .

It is a cyclic number.

It is not a de Polignac number, because 1916543875753 - 2¹ = 1916543875751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1916543875751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73713225978 + ... + 73713226003.

It is an arithmetic number, because the mean of its divisors is an integer number (515992581937).

Almost surely, 2^{1916543875753} is an apocalyptic number.

1916543875753 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1916543875753 is a deficient number, since it is larger than the sum of its proper divisors (147426451995).

1916543875753 is a wasteful number, since it uses less digits than its factorization.

1916543875753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147426451994.

The product of its digits is 95256000, while the sum is 64.

The spelling of 1916543875753 in words is "one trillion, nine hundred sixteen billion, five hundred forty-three million, eight hundred seventy-five thousand, seven hundred fifty-three".