1970784520805 has 16 divisors (see below), whose sum is σ = 2504318705280. Its totient is φ = 1484703208512.

The previous prime is 1970784520787. The next prime is 1970784520807. The reversal of 1970784520805 is 5080254870791.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970784520805 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970784520807) 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 15 ways as a sum of consecutive naturals, for example, 62095214 + ... + 62126943.

It is an arithmetic number, because the mean of its divisors is an integer number (156519919080).

Almost surely, 2^{1970784520805} is an apocalyptic number.

It is an amenable number.

1970784520805 is a deficient number, since it is larger than the sum of its proper divisors (533534184475).

1970784520805 is a wasteful number, since it uses less digits than its factorization.

1970784520805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124222348.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 1970784520805 in words is "one trillion, nine hundred seventy billion, seven hundred eighty-four million, five hundred twenty thousand, eight hundred five".