78061164479 has 8 divisors (see below), whose sum is σ = 85742240640. Its totient is φ = 70737347736.

The previous prime is 78061164473. The next prime is 78061164529. The reversal of 78061164479 is 97446116087.

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

It is a cyclic number.

It is not a de Polignac number, because 78061164479 - 2⁴ = 78061164463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78061164479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78061164473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89314397 + ... + 89315270.

It is an arithmetic number, because the mean of its divisors is an integer number (10717780080).

Almost surely, 2^78061164479 is an apocalyptic number.

78061164479 is a deficient number, since it is larger than the sum of its proper divisors (7681076161).

78061164479 is a wasteful number, since it uses less digits than its factorization.

78061164479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178629709.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 78061164479 in words is "seventy-eight billion, sixty-one million, one hundred sixty-four thousand, four hundred seventy-nine".