78913626266 has 8 divisors (see below), whose sum is σ = 118372841760. Its totient is φ = 39456012348.

The previous prime is 78913626247. The next prime is 78913626271. The reversal of 78913626266 is 66262631987.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268526 + ... + 479513.

It is an arithmetic number, because the mean of its divisors is an integer number (14796605220).

Almost surely, 2^78913626266 is an apocalyptic number.

78913626266 is a deficient number, since it is larger than the sum of its proper divisors (39459215494).

78913626266 is a wasteful number, since it uses less digits than its factorization.

78913626266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800788.

The product of its digits is 7838208, while the sum is 56.

The spelling of 78913626266 in words is "seventy-eight billion, nine hundred thirteen million, six hundred twenty-six thousand, two hundred sixty-six".