78856266047222 has 8 divisors (see below), whose sum is σ = 118290104810472. Its totient is φ = 39426231110400.

The previous prime is 78856266047219. The next prime is 78856266047257. The reversal of 78856266047222 is 22274066265887.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950904779 + ... + 950987702.

It is an arithmetic number, because the mean of its divisors is an integer number (14786263101309).

Almost surely, 2^{78856266047222} is an apocalyptic number.

78856266047222 is a deficient number, since it is larger than the sum of its proper divisors (39433838763250).

78856266047222 is a wasteful number, since it uses less digits than its factorization.

78856266047222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901913214.

The product of its (nonzero) digits is 216760320, while the sum is 65.

The spelling of 78856266047222 in words is "seventy-eight trillion, eight hundred fifty-six billion, two hundred sixty-six million, forty-seven thousand, two hundred twenty-two".