68025028778 has 8 divisors (see below), whose sum is σ = 116614335072. Its totient is φ = 29153583756.

The previous prime is 68025028769. The next prime is 68025028823. The reversal of 68025028778 is 87782052086.

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

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, 2429465300 + ... + 2429465327.

It is an arithmetic number, because the mean of its divisors is an integer number (14576791884).

Almost surely, 2^68025028778 is an apocalyptic number.

68025028778 is a deficient number, since it is larger than the sum of its proper divisors (48589306294).

68025028778 is a wasteful number, since it uses less digits than its factorization.

68025028778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858930636.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 68025028778 in words is "sixty-eight billion, twenty-five million, twenty-eight thousand, seven hundred seventy-eight".