68542197446 has 8 divisors (see below), whose sum is σ = 102818810160. Its totient is φ = 34269260728.

The previous prime is 68542197401. The next prime is 68542197481. The reversal of 68542197446 is 64479124586.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68542197391 and 68542197400.

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, 871901 + ... + 947256.

It is an arithmetic number, because the mean of its divisors is an integer number (12852351270).

Almost surely, 2^68542197446 is an apocalyptic number.

68542197446 is a deficient number, since it is larger than the sum of its proper divisors (34276612714).

68542197446 is a wasteful number, since it uses less digits than its factorization.

68542197446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837998.

The product of its digits is 11612160, while the sum is 56.

The spelling of 68542197446 in words is "sixty-eight billion, five hundred forty-two million, one hundred ninety-seven thousand, four hundred forty-six".