1968129982 has 48 divisors (see below), whose sum is σ = 3777157440. Its totient is φ = 762011712.

The previous prime is 1968129893. The next prime is 1968129997. The reversal of 1968129982 is 2899218691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43444 + ... + 76312.

It is an arithmetic number, because the mean of its divisors is an integer number (78690780).

Almost surely, 2^1968129982 is an apocalyptic number.

1968129982 is a deficient number, since it is larger than the sum of its proper divisors (1809027458).

1968129982 is a wasteful number, since it uses less digits than its factorization.

1968129982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32945 (or 32938 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 55.

The square root of 1968129982 is about 44363.6110117290. The cubic root of 1968129982 is about 1253.1929001933.

The spelling of 1968129982 in words is "one billion, nine hundred sixty-eight million, one hundred twenty-nine thousand, nine hundred eighty-two".