647422747783 has 12 divisors (see below), whose sum is σ = 773480489488. Its totient is φ = 530806224960.

The previous prime is 647422747771. The next prime is 647422747787. The reversal of 647422747783 is 387747224746.

It is not a de Polignac number, because 647422747783 - 2¹³ = 647422739591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647422747787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87414978 + ... + 87422383.

Almost surely, 2^647422747783 is an apocalyptic number.

647422747783 is a deficient number, since it is larger than the sum of its proper divisors (126057741705).

647422747783 is a wasteful number, since it uses less digits than its factorization.

647422747783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174837414 (or 174837391 counting only the distinct ones).

The product of its digits is 88510464, while the sum is 61.

The spelling of 647422747783 in words is "six hundred forty-seven billion, four hundred twenty-two million, seven hundred forty-seven thousand, seven hundred eighty-three".