1970774666729 has 16 divisors (see below), whose sum is σ = 2156127180480. Its totient is φ = 1786458231360.

The previous prime is 1970774666717. The next prime is 1970774666747. The reversal of 1970774666729 is 9276664770791.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1970774666729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970774666779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9358139 + ... + 9566415.

It is an arithmetic number, because the mean of its divisors is an integer number (134757948780).

Almost surely, 2^{1970774666729} is an apocalyptic number.

It is an amenable number.

1970774666729 is a deficient number, since it is larger than the sum of its proper divisors (185352513751).

1970774666729 is a wasteful number, since it uses less digits than its factorization.

1970774666729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210760.

The product of its (nonzero) digits is 336063168, while the sum is 71.

The spelling of 1970774666729 in words is "one trillion, nine hundred seventy billion, seven hundred seventy-four million, six hundred sixty-six thousand, seven hundred twenty-nine".