1961794766 has 8 divisors (see below), whose sum is σ = 2946892104. Its totient is φ = 979497400.

The previous prime is 1961794763. The next prime is 1961794799. The reversal of 1961794766 is 6674971691.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961794763) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 698240 + ... + 701043.

It is an arithmetic number, because the mean of its divisors is an integer number (368361513).

Almost surely, 2^1961794766 is an apocalyptic number.

1961794766 is a deficient number, since it is larger than the sum of its proper divisors (985097338).

1961794766 is a wasteful number, since it uses less digits than its factorization.

1961794766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399986.

The product of its digits is 3429216, while the sum is 56.

The square root of 1961794766 is about 44292.1524200394. The cubic root of 1961794766 is about 1251.8468201405.

The spelling of 1961794766 in words is "one billion, nine hundred sixty-one million, seven hundred ninety-four thousand, seven hundred sixty-six".