78470303849 has 4 divisors (see below), whose sum is σ = 89680347264. Its totient is φ = 67260260436.

The previous prime is 78470303839. The next prime is 78470303881. The reversal of 78470303849 is 94830307487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78470303849 - 2⁴ = 78470303833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78470303849.

It is not an unprimeable number, because it can be changed into a prime (78470303839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5605021697 + ... + 5605021710.

It is an arithmetic number, because the mean of its divisors is an integer number (22420086816).

Almost surely, 2^78470303849 is an apocalyptic number.

It is an amenable number.

78470303849 is a deficient number, since it is larger than the sum of its proper divisors (11210043415).

78470303849 is a wasteful number, since it uses less digits than its factorization.

78470303849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11210043414.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 78470303849 in words is "seventy-eight billion, four hundred seventy million, three hundred three thousand, eight hundred forty-nine".