47078236865 has 8 divisors (see below), whose sum is σ = 61629691968. Its totient is φ = 34238717680.

The previous prime is 47078236861. The next prime is 47078236873. The reversal of 47078236865 is 56863287074.

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

It is not a de Polignac number, because 47078236865 - 2² = 47078236861 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 47078236865.

It is not an unprimeable number, because it can be changed into a prime (47078236861) by changing a digit.

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, 427983917 + ... + 427984026.

It is an arithmetic number, because the mean of its divisors is an integer number (7703711496).

Almost surely, 2^47078236865 is an apocalyptic number.

It is an amenable number.

47078236865 is a deficient number, since it is larger than the sum of its proper divisors (14551455103).

47078236865 is a wasteful number, since it uses less digits than its factorization.

47078236865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855967959.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 47078236865 in words is "forty-seven billion, seventy-eight million, two hundred thirty-six thousand, eight hundred sixty-five".