47853699809 has 2 divisors, whose sum is σ = 47853699810. Its totient is φ = 47853699808.

The previous prime is 47853699793. The next prime is 47853699811. The reversal of 47853699809 is 90899635874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45533158225 + 2320541584 = 213385^2 + 48172^2 .

It is a cyclic number.

It is not a de Polignac number, because 47853699809 - 2⁴ = 47853699793 is a prime.

Together with 47853699811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47853699899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23926849904 + 23926849905.

It is an arithmetic number, because the mean of its divisors is an integer number (23926849905).

Almost surely, 2^47853699809 is an apocalyptic number.

It is an amenable number.

47853699809 is a deficient number, since it is larger than the sum of its proper divisors (1).

47853699809 is an equidigital number, since it uses as much as digits as its factorization.

47853699809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 47853699809 in words is "forty-seven billion, eight hundred fifty-three million, six hundred ninety-nine thousand, eight hundred nine".