1968897758 has 8 divisors (see below), whose sum is σ = 2972905680. Its totient is φ = 977929200.

The previous prime is 1968897739. The next prime is 1968897869. The reversal of 1968897758 is 8577988691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3259463 + ... + 3260066.

It is an arithmetic number, because the mean of its divisors is an integer number (371613210).

Almost surely, 2^1968897758 is an apocalyptic number.

1968897758 is a deficient number, since it is larger than the sum of its proper divisors (1004007922).

1968897758 is a wasteful number, since it uses less digits than its factorization.

1968897758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519682.

The product of its digits is 60963840, while the sum is 68.

The square root of 1968897758 is about 44372.2633860388. The cubic root of 1968897758 is about 1253.3558376605.

The spelling of 1968897758 in words is "one billion, nine hundred sixty-eight million, eight hundred ninety-seven thousand, seven hundred fifty-eight".