647422647380 has 48 divisors (see below), whose sum is σ = 1456907497920. Its totient is φ = 240799001088.

The previous prime is 647422647307. The next prime is 647422647407. The reversal of 647422647380 is 83746224746.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11442770 + ... + 11499209.

It is an arithmetic number, because the mean of its divisors is an integer number (30352239540).

Almost surely, 2^647422647380 is an apocalyptic number.

It is an amenable number.

647422647380 is an abundant number, since it is smaller than the sum of its proper divisors (809484850540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647422647380 is a wasteful number, since it uses less digits than its factorization.

647422647380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22942088 (or 22942086 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 53.

The spelling of 647422647380 in words is "six hundred forty-seven billion, four hundred twenty-two million, six hundred forty-seven thousand, three hundred eighty".