6281920653376 has 21 divisors (see below), whose sum is σ = 12465726085389. Its totient is φ = 3140950301184.

The previous prime is 6281920653353. The next prime is 6281920653383. The reversal of 6281920653376 is 6733560291826.

The square root of 6281920653376 is 2506376.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 286396225600 + 5995524427776 = 535160^2 + 2448576^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6281920653376.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19894360 + ... + 20207656.

Almost surely, 2^{6281920653376} is an apocalyptic number.

6281920653376 is the 2506376-th square number.

It is an amenable number.

6281920653376 is a deficient number, since it is larger than the sum of its proper divisors (6183805432013).

6281920653376 is an frugal number, since it uses more digits than its factorization.

6281920653376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626606 (or 313299 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 58.

The spelling of 6281920653376 in words is "six trillion, two hundred eighty-one billion, nine hundred twenty million, six hundred fifty-three thousand, three hundred seventy-six".