1968960997100 has 18 divisors (see below), whose sum is σ = 4272645363924. Its totient is φ = 787584398800.

The previous prime is 1968960997099. The next prime is 1968960997111. The reversal of 1968960997100 is 17990698691.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9844804886 + ... + 9844805085.

Almost surely, 2^{1968960997100} is an apocalyptic number.

1968960997100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1968960997100 is an abundant number, since it is smaller than the sum of its proper divisors (2303684366824).

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

1968960997100 is a wasteful number, since it uses less digits than its factorization.

1968960997100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19689609985 (or 19689609978 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 65.

The spelling of 1968960997100 in words is "one trillion, nine hundred sixty-eight billion, nine hundred sixty million, nine hundred ninety-seven thousand, one hundred".