20047975903 has 2 divisors, whose sum is σ = 20047975904. Its totient is φ = 20047975902.

The previous prime is 20047975901. The next prime is 20047975979. The reversal of 20047975903 is 30957974002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20047975903 - 2¹ = 20047975901 is a prime.

Together with 20047975901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20047975901) 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 as a sum of consecutive naturals, namely, 10023987951 + 10023987952.

It is an arithmetic number, because the mean of its divisors is an integer number (10023987952).

Almost surely, 2^20047975903 is an apocalyptic number.

20047975903 is a deficient number, since it is larger than the sum of its proper divisors (1).

20047975903 is an equidigital number, since it uses as much as digits as its factorization.

20047975903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 20047975903 in words is "twenty billion, forty-seven million, nine hundred seventy-five thousand, nine hundred three".