78394603706 has 16 divisors (see below), whose sum is σ = 124321495200. Its totient is φ = 36972123408.

The previous prime is 78394603697. The next prime is 78394603739. The reversal of 78394603706 is 60730649387.

It is a super-2 number, since 2×78394603706² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4495700 + ... + 4513103.

It is an arithmetic number, because the mean of its divisors is an integer number (7770093450).

Almost surely, 2^78394603706 is an apocalyptic number.

78394603706 is a deficient number, since it is larger than the sum of its proper divisors (45926891494).

78394603706 is a wasteful number, since it uses less digits than its factorization.

78394603706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9009053.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 78394603706 in words is "seventy-eight billion, three hundred ninety-four million, six hundred three thousand, seven hundred six".