647771245322 has 16 divisors (see below), whose sum is σ = 1027644093600. Its totient is φ = 305384793840.

The previous prime is 647771245321. The next prime is 647771245369. The reversal of 647771245322 is 223542177746.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (647771245321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40386797 + ... + 40402832.

It is an arithmetic number, because the mean of its divisors is an integer number (64227755850).

Almost surely, 2^647771245322 is an apocalyptic number.

647771245322 is a deficient number, since it is larger than the sum of its proper divisors (379872848278).

647771245322 is a wasteful number, since it uses less digits than its factorization.

647771245322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80789861.

The product of its digits is 3951360, while the sum is 50.

The spelling of 647771245322 in words is "six hundred forty-seven billion, seven hundred seventy-one million, two hundred forty-five thousand, three hundred twenty-two".