1966906286 has 4 divisors (see below), whose sum is σ = 2950359432. Its totient is φ = 983453142.

The previous prime is 1966906261. The next prime is 1966906289. The reversal of 1966906286 is 6826096691.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966906289) 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 as a sum of consecutive naturals, namely, 491726570 + ... + 491726573.

It is an arithmetic number, because the mean of its divisors is an integer number (737589858).

Almost surely, 2^1966906286 is an apocalyptic number.

1966906286 is a deficient number, since it is larger than the sum of its proper divisors (983453146).

1966906286 is an equidigital number, since it uses as much as digits as its factorization.

1966906286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983453145.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 1966906286 is about 44349.8172036819. The cubic root of 1966906286 is about 1252.9331197436.

The spelling of 1966906286 in words is "one billion, nine hundred sixty-six million, nine hundred six thousand, two hundred eighty-six".