1968678474 has 16 divisors (see below), whose sum is σ = 4499836608. Its totient is φ = 562479552.

The previous prime is 1968678473. The next prime is 1968678479. The reversal of 1968678474 is 4748768691.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1968678473) 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, 23436607 + ... + 23436690.

It is an arithmetic number, because the mean of its divisors is an integer number (281239788).

Almost surely, 2^1968678474 is an apocalyptic number.

1968678474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1968678474 is an abundant number, since it is smaller than the sum of its proper divisors (2531158134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1968678474 is a wasteful number, since it uses less digits than its factorization.

1968678474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46873309.

The product of its digits is 16257024, while the sum is 60.

The square root of 1968678474 is about 44369.7923592166. The cubic root of 1968678474 is about 1253.3093055193.

The spelling of 1968678474 in words is "one billion, nine hundred sixty-eight million, six hundred seventy-eight thousand, four hundred seventy-four".