78946626278 has 8 divisors (see below), whose sum is σ = 127529165568. Its totient is φ = 36436904424.

The previous prime is 78946626277. The next prime is 78946626287. The reversal of 78946626278 is 87262664987.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78946626277) by changing a digit.

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, 1518204326 + ... + 1518204377.

It is an arithmetic number, because the mean of its divisors is an integer number (15941145696).

Almost surely, 2^78946626278 is an apocalyptic number.

78946626278 is a deficient number, since it is larger than the sum of its proper divisors (48582539290).

78946626278 is a wasteful number, since it uses less digits than its factorization.

78946626278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036408718.

The product of its digits is 97542144, while the sum is 65.

The spelling of 78946626278 in words is "seventy-eight billion, nine hundred forty-six million, six hundred twenty-six thousand, two hundred seventy-eight".