647034763093 has 2 divisors, whose sum is σ = 647034763094. Its totient is φ = 647034763092.

The previous prime is 647034763091. The next prime is 647034763121. The reversal of 647034763093 is 390367430746.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605621699089 + 41413064004 = 778217^2 + 203502^2 .

It is a cyclic number.

It is not a de Polignac number, because 647034763093 - 2¹ = 647034763091 is a prime.

Together with 647034763091, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 647034763093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647034763091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323517381546 + 323517381547.

It is an arithmetic number, because the mean of its divisors is an integer number (323517381547).

Almost surely, 2^647034763093 is an apocalyptic number.

It is an amenable number.

647034763093 is a deficient number, since it is larger than the sum of its proper divisors (1).

647034763093 is an equidigital number, since it uses as much as digits as its factorization.

647034763093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 52.

The spelling of 647034763093 in words is "six hundred forty-seven billion, thirty-four million, seven hundred sixty-three thousand, ninety-three".