6354821716 has 12 divisors (see below), whose sum is σ = 11123833588. Its totient is φ = 3176583552.

The previous prime is 6354821653. The next prime is 6354821723. The reversal of 6354821716 is 6171284536.

It can be written as a sum of positive squares in 2 ways, for example, as 518472900 + 5836348816 = 22770^2 + 76396^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189381 + ... + 220396.

Almost surely, 2^6354821716 is an apocalyptic number.

It is an amenable number.

6354821716 is a deficient number, since it is larger than the sum of its proper divisors (4769011872).

6354821716 is a wasteful number, since it uses less digits than its factorization.

6354821716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413658 (or 413656 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 6354821716 is about 79717.1356484915. The cubic root of 6354821716 is about 1852.2564836108.

It can be divided in two parts, 63548 and 21716, that added together give a square (85264 = 292²).

The spelling of 6354821716 in words is "six billion, three hundred fifty-four million, eight hundred twenty-one thousand, seven hundred sixteen".