1968662086 has 16 divisors (see below), whose sum is σ = 3161102400. Its totient is φ = 916717608.

The previous prime is 1968662081. The next prime is 1968662141. The reversal of 1968662086 is 6802668691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968662081) 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 7 ways as a sum of consecutive naturals, for example, 436800 + ... + 441283.

It is an arithmetic number, because the mean of its divisors is an integer number (197568900).

Almost surely, 2^1968662086 is an apocalyptic number.

1968662086 is a deficient number, since it is larger than the sum of its proper divisors (1192440314).

1968662086 is a wasteful number, since it uses less digits than its factorization.

1968662086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878163.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 1968662086 is about 44369.6076836386. The cubic root of 1968662086 is about 1253.3058278412.

The spelling of 1968662086 in words is "one billion, nine hundred sixty-eight million, six hundred sixty-two thousand, eighty-six".