1945712986966 has 16 divisors (see below), whose sum is σ = 3335636056320. Its totient is φ = 833844974760.

The previous prime is 1945712986913. The next prime is 1945712986967. The reversal of 1945712986966 is 6696892175491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945712986967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2288826 + ... + 3021613.

It is an arithmetic number, because the mean of its divisors is an integer number (208477253520).

Almost surely, 2^{1945712986966} is an apocalyptic number.

1945712986966 is a deficient number, since it is larger than the sum of its proper divisors (1389923069354).

1945712986966 is a wasteful number, since it uses less digits than its factorization.

1945712986966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336619.

The product of its digits is 352719360, while the sum is 73.

The spelling of 1945712986966 in words is "one trillion, nine hundred forty-five billion, seven hundred twelve million, nine hundred eighty-six thousand, nine hundred sixty-six".