711287886540361 has 9 divisors (see below), whose sum is σ = 770211518844981. Its totient is φ = 656573113689792.

The previous prime is 711287886540359. The next prime is 711287886540373. The reversal of 711287886540361 is 163045688782117.

The square root of 711287886540361 is 26669981.

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 484824514850361 + 226463371690000 = 22018731^2 + 15048700^2 .

It is not a de Polignac number, because 711287886540361 - 2¹ = 711287886540359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (711287886540061) 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, 345683985 + ... + 347735521.

Almost surely, 2^{711287886540361} is an apocalyptic number.

711287886540361 is the 26669981-st square number.

711287886540361 is the 13334991-st centered octagonal number.

It is an amenable number.

711287886540361 is a deficient number, since it is larger than the sum of its proper divisors (58923632304620).

711287886540361 is an frugal number, since it uses more digits than its factorization.

711287886540361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103100 (or 2051550 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 67.

The spelling of 711287886540361 in words is "seven hundred eleven trillion, two hundred eighty-seven billion, eight hundred eighty-six million, five hundred forty thousand, three hundred sixty-one".