647405222214 has 32 divisors (see below), whose sum is σ = 1303133495040. Its totient is φ = 214416172832.

The previous prime is 647405222213. The next prime is 647405222231. The reversal of 647405222214 is 412222504746.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647405222213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1418209 + ... + 1818275.

It is an arithmetic number, because the mean of its divisors is an integer number (40722921720).

Almost surely, 2^647405222214 is an apocalyptic number.

647405222214 is an abundant number, since it is smaller than the sum of its proper divisors (655728272826).

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

647405222214 is a wasteful number, since it uses less digits than its factorization.

647405222214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401804.

The product of its (nonzero) digits is 215040, while the sum is 39.

The spelling of 647405222214 in words is "six hundred forty-seven billion, four hundred five million, two hundred twenty-two thousand, two hundred fourteen".