20147315759 has 2 divisors, whose sum is σ = 20147315760. Its totient is φ = 20147315758.

The previous prime is 20147315753. The next prime is 20147315767. The reversal of 20147315759 is 95751374102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20147315759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20147315753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073657879 + 10073657880.

It is an arithmetic number, because the mean of its divisors is an integer number (10073657880).

Almost surely, 2^20147315759 is an apocalyptic number.

20147315759 is a deficient number, since it is larger than the sum of its proper divisors (1).

20147315759 is an equidigital number, since it uses as much as digits as its factorization.

20147315759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 20147315759 in words is "twenty billion, one hundred forty-seven million, three hundred fifteen thousand, seven hundred fifty-nine".