268203158378 has 16 divisors (see below), whose sum is σ = 419808312000. Its totient is φ = 128267389536.

The previous prime is 268203158347. The next prime is 268203158389. The reversal of 268203158378 is 873851302862.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2208998 + ... + 2327246.

It is an arithmetic number, because the mean of its divisors is an integer number (26238019500).

Almost surely, 2^268203158378 is an apocalyptic number.

268203158378 is a deficient number, since it is larger than the sum of its proper divisors (151605153622).

268203158378 is a wasteful number, since it uses less digits than its factorization.

268203158378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167581.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 268203158378 in words is "two hundred sixty-eight billion, two hundred three million, one hundred fifty-eight thousand, three hundred seventy-eight".