1968660946 has 48 divisors (see below), whose sum is σ = 3623585760. Its totient is φ = 797610240.

The previous prime is 1968660943. The next prime is 1968660977. The reversal of 1968660946 is 6490668691.

It is a super-2 number, since 2×1968660946² = 7751251840611229832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1968660943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1252341 + ... + 1253911.

It is an arithmetic number, because the mean of its divisors is an integer number (75491370).

Almost surely, 2^1968660946 is an apocalyptic number.

1968660946 is a deficient number, since it is larger than the sum of its proper divisors (1654924814).

1968660946 is a wasteful number, since it uses less digits than its factorization.

1968660946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2272 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 55.

The square root of 1968660946 is about 44369.5948370052. The cubic root of 1968660946 is about 1253.3055859225.

The spelling of 1968660946 in words is "one billion, nine hundred sixty-eight million, six hundred sixty thousand, nine hundred forty-six".