47048043985 has 4 divisors (see below), whose sum is σ = 56457652788. Its totient is φ = 37638435184.

The previous prime is 47048043893. The next prime is 47048043989. The reversal of 47048043985 is 58934084074.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26021883969 + 21026160016 = 161313^2 + 145004^2 .

It is a cyclic number.

It is not a de Polignac number, because 47048043985 - 2⁷ = 47048043857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47048043989) 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 3 ways as a sum of consecutive naturals, for example, 4704804394 + ... + 4704804403.

It is an arithmetic number, because the mean of its divisors is an integer number (14114413197).

Almost surely, 2^47048043985 is an apocalyptic number.

It is an amenable number.

47048043985 is a deficient number, since it is larger than the sum of its proper divisors (9409608803).

47048043985 is an equidigital number, since it uses as much as digits as its factorization.

47048043985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9409608802.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 47048043985 in words is "forty-seven billion, forty-eight million, forty-three thousand, nine hundred eighty-five".