1967998568 has 32 divisors (see below), whose sum is σ = 3886444800. Its totient is φ = 931673088.

The previous prime is 1967998567. The next prime is 1967998577. The reversal of 1967998568 is 8658997691.

It is a junction number, because it is equal to n+sod(n) for n = 1967998498 and 1967998507.

It is not an unprimeable number, because it can be changed into a prime (1967998567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416105 + ... + 420807.

It is an arithmetic number, because the mean of its divisors is an integer number (121451400).

Almost surely, 2^1967998568 is an apocalyptic number.

It is an amenable number.

1967998568 is a deficient number, since it is larger than the sum of its proper divisors (1918446232).

1967998568 is a wasteful number, since it uses less digits than its factorization.

1967998568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481 (or 7477 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 68.

The square root of 1967998568 is about 44362.1298857483. The cubic root of 1967998568 is about 1253.1650072596.

The spelling of 1967998568 in words is "one billion, nine hundred sixty-seven million, nine hundred ninety-eight thousand, five hundred sixty-eight".