4521218323316 has 6 divisors (see below), whose sum is σ = 7912132065810. Its totient is φ = 2260609161656.

The previous prime is 4521218323283. The next prime is 4521218323387. The reversal of 4521218323316 is 6133238121254.

It can be written as a sum of positive squares in only one way, i.e., 3038537059600 + 1482681263716 = 1743140^2 + 1217654^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565152290411 + ... + 565152290418.

It is an arithmetic number, because the mean of its divisors is an integer number (1318688677635).

Almost surely, 2^{4521218323316} is an apocalyptic number.

It is an amenable number.

4521218323316 is a deficient number, since it is larger than the sum of its proper divisors (3390913742494).

4521218323316 is a wasteful number, since it uses less digits than its factorization.

4521218323316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130304580833 (or 1130304580831 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The spelling of 4521218323316 in words is "four trillion, five hundred twenty-one billion, two hundred eighteen million, three hundred twenty-three thousand, three hundred sixteen".