68196198840 has 192 divisors, whose sum is σ = 259626591360. Its totient is φ = 14170625280.

The previous prime is 68196198823. The next prime is 68196198841. The reversal of 68196198840 is 4889169186.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68196198841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462502 + ... + 591861.

It is an arithmetic number, because the mean of its divisors is an integer number (1352221830).

Almost surely, 2^68196198840 is an apocalyptic number.

68196198840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68196198840 is an abundant number, since it is smaller than the sum of its proper divisors (191430392520).

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

68196198840 is a wasteful number, since it uses less digits than its factorization.

68196198840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054402 (or 1054391 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 60.

The spelling of 68196198840 in words is "sixty-eight billion, one hundred ninety-six million, one hundred ninety-eight thousand, eight hundred forty".