6404260280896 has 63 divisors (see below), whose sum is σ = 12807440277499. Its totient is φ = 3177380246528.

The previous prime is 6404260280893. The next prime is 6404260280903. The reversal of 6404260280896 is 6980820624046.

The square root of 6404260280896 is 2530664.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1231656040000 + 5172604240896 = 1109800^2 + 2274336^2 .

It is a super-2 number, since 2×6404260280896² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6404260280893) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2773606590 + ... + 2773608898.

Almost surely, 2^{6404260280896} is an apocalyptic number.

6404260280896 is the 2530664-th square number.

It is an amenable number.

6404260280896 is a deficient number, since it is larger than the sum of its proper divisors (6403179996603).

6404260280896 is an frugal number, since it uses more digits than its factorization.

6404260280896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 55.

The spelling of 6404260280896 in words is "six trillion, four hundred four billion, two hundred sixty million, two hundred eighty thousand, eight hundred ninety-six".