1968554034198 has 16 divisors (see below), whose sum is σ = 4374564520560. Its totient is φ = 656184678048.

The previous prime is 1968554034157. The next prime is 1968554034199. The reversal of 1968554034198 is 8914304558691.

1968554034198 is a `hidden beast` number, since 1 + 9 + 6 + 85 + 540 + 3 + 4 + 1 + 9 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968554034199) 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, 18227352115 + ... + 18227352222.

It is an arithmetic number, because the mean of its divisors is an integer number (273410282535).

Almost surely, 2^{1968554034198} is an apocalyptic number.

1968554034198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1968554034198 is an abundant number, since it is smaller than the sum of its proper divisors (2406010486362).

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

1968554034198 is a wasteful number, since it uses less digits than its factorization.

1968554034198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36454704348 (or 36454704342 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 63.

The spelling of 1968554034198 in words is "one trillion, nine hundred sixty-eight billion, five hundred fifty-four million, thirty-four thousand, one hundred ninety-eight".