1940171864212 has 48 divisors (see below), whose sum is σ = 3592660280832. Its totient is φ = 914952360960.

The previous prime is 1940171864209. The next prime is 1940171864231. The reversal of 1940171864212 is 2124681710491.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2017278 + ... + 2819530.

It is an arithmetic number, because the mean of its divisors is an integer number (74847089184).

Almost surely, 2^{1940171864212} is an apocalyptic number.

It is an amenable number.

1940171864212 is a deficient number, since it is larger than the sum of its proper divisors (1652488416620).

1940171864212 is a wasteful number, since it uses less digits than its factorization.

1940171864212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802648 (or 802646 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 1940171864212 in words is "one trillion, nine hundred forty billion, one hundred seventy-one million, eight hundred sixty-four thousand, two hundred twelve".