78064126906 has 8 divisors (see below), whose sum is σ = 117098147124. Its totient is φ = 39031411200.

The previous prime is 78064126859. The next prime is 78064126927. The reversal of 78064126906 is 60962146087.

It can be written as a sum of positive squares in 2 ways, for example, as 63181346881 + 14882780025 = 251359^2 + 121995^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 78064126906.

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, 159495 + ... + 426106.

Almost surely, 2^78064126906 is an apocalyptic number.

78064126906 is a deficient number, since it is larger than the sum of its proper divisors (39034020218).

78064126906 is a wasteful number, since it uses less digits than its factorization.

78064126906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652256.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 78064126906 in words is "seventy-eight billion, sixty-four million, one hundred twenty-six thousand, nine hundred six".