68193051778 has 8 divisors (see below), whose sum is σ = 103730276160. Its totient is φ = 33616293060.

The previous prime is 68193051769. The next prime is 68193051799. The reversal of 68193051778 is 87715039186.

It is a happy number.

68193051778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×68193051778² (a number of 22 digits) contains 22 as substring.

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, 240116238 + ... + 240116521.

It is an arithmetic number, because the mean of its divisors is an integer number (12966284520).

Almost surely, 2^68193051778 is an apocalyptic number.

68193051778 is a deficient number, since it is larger than the sum of its proper divisors (35537224382).

68193051778 is a wasteful number, since it uses less digits than its factorization.

68193051778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480232832.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 68193051778 in words is "sixty-eight billion, one hundred ninety-three million, fifty-one thousand, seven hundred seventy-eight".