7556896538361 has 27 divisors (see below), whose sum is σ = 10944073826959. Its totient is φ = 5024785398432.

The previous prime is 7556896538293. The next prime is 7556896538377. The reversal of 7556896538361 is 1638356986557.

The square root of 7556896538361 is 2748981.

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

7556896538361 is a `hidden beast` number, since 7 + 5 + 5 + 6 + 89 + 6 + 538 + 3 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6579455852025 + 977440686336 = 2565045^2 + 988656^2 .

It is not a de Polignac number, because 7556896538361 - 2¹¹ = 7556896536313 is a prime.

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 7556896538361.

It is not an unprimeable number, because it can be changed into a prime (7556896538381) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3950284741 + ... + 3950286653.

Almost surely, 2^{7556896538361} is an apocalyptic number.

7556896538361 is the 2748981-st square number.

7556896538361 is the 1374491-st centered octagonal number.

It is an amenable number.

7556896538361 is a deficient number, since it is larger than the sum of its proper divisors (3387177288598).

7556896538361 is an frugal number, since it uses more digits than its factorization.

7556896538361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790 (or 2395 counting only the distinct ones).

The product of its digits is 979776000, while the sum is 72.

The spelling of 7556896538361 in words is "seven trillion, five hundred fifty-six billion, eight hundred ninety-six million, five hundred thirty-eight thousand, three hundred sixty-one".