1941794566 has 16 divisors (see below), whose sum is σ = 3131228160. Its totient is φ = 900226440.

The previous prime is 1941794551. The next prime is 1941794579. The reversal of 1941794566 is 6654971491.

It is a super-2 number, since 2×1941794566² = 7541132273094256712, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 541830 + ... + 545401.

It is an arithmetic number, because the mean of its divisors is an integer number (195701760).

Almost surely, 2^1941794566 is an apocalyptic number.

1941794566 is a deficient number, since it is larger than the sum of its proper divisors (1189433594).

1941794566 is a wasteful number, since it uses less digits than its factorization.

1941794566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087299.

The product of its digits is 1632960, while the sum is 52.

The square root of 1941794566 is about 44065.7981432312. The cubic root of 1941794566 is about 1247.5781514969.

The spelling of 1941794566 in words is "one billion, nine hundred forty-one million, seven hundred ninety-four thousand, five hundred sixty-six".