68156342783 has 8 divisors (see below), whose sum is σ = 68593030560. Its totient is φ = 67721027040.

The previous prime is 68156342777. The next prime is 68156342797. The reversal of 68156342783 is 38724365186.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68156342783 - 2¹⁶ = 68156277247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68156342713) 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, 243248 + ... + 442133.

It is an arithmetic number, because the mean of its divisors is an integer number (8574128820).

Almost surely, 2^68156342783 is an apocalyptic number.

68156342783 is a deficient number, since it is larger than the sum of its proper divisors (436687777).

68156342783 is a wasteful number, since it uses less digits than its factorization.

68156342783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686017.

The product of its digits is 5806080, while the sum is 53.

The spelling of 68156342783 in words is "sixty-eight billion, one hundred fifty-six million, three hundred forty-two thousand, seven hundred eighty-three".