647362046140 has 12 divisors (see below), whose sum is σ = 1359460296936. Its totient is φ = 258944818448.

The previous prime is 647362046113. The next prime is 647362046147. The reversal of 647362046140 is 41640263746.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647362046147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16184051134 + ... + 16184051173.

It is an arithmetic number, because the mean of its divisors is an integer number (113288358078).

Almost surely, 2^647362046140 is an apocalyptic number.

It is an amenable number.

647362046140 is an abundant number, since it is smaller than the sum of its proper divisors (712098250796).

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

647362046140 is a wasteful number, since it uses less digits than its factorization.

647362046140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32368102316 (or 32368102314 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 647362046140 in words is "six hundred forty-seven billion, three hundred sixty-two million, forty-six thousand, one hundred forty".