647947081302 has 16 divisors (see below), whose sum is σ = 1295951009472. Its totient is φ = 215972885960.

The previous prime is 647947081291. The next prime is 647947081321. The reversal of 647947081302 is 203180749746.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219724 + ... + 2494607.

It is an arithmetic number, because the mean of its divisors is an integer number (80996938092).

Almost surely, 2^647947081302 is an apocalyptic number.

647947081302 is an abundant number, since it is smaller than the sum of its proper divisors (648003928170).

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

647947081302 is a wasteful number, since it uses less digits than its factorization.

647947081302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737243.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 647947081302 in words is "six hundred forty-seven billion, nine hundred forty-seven million, eighty-one thousand, three hundred two".