827761530813 has 16 divisors (see below), whose sum is σ = 1274354524800. Its totient is φ = 468130231296.

The previous prime is 827761530793. The next prime is 827761530833. The reversal of 827761530813 is 318035167728.

It is an interprime number because it is at equal distance from previous prime (827761530793) and next prime (827761530833).

It is not a de Polignac number, because 827761530813 - 2⁵ = 827761530781 is a prime.

It is a super-3 number, since 3×827761530813³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827761530833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203179488 + ... + 203183561.

It is an arithmetic number, because the mean of its divisors is an integer number (79647157800).

Almost surely, 2^827761530813 is an apocalyptic number.

It is an amenable number.

827761530813 is a deficient number, since it is larger than the sum of its proper divisors (446592993987).

827761530813 is a wasteful number, since it uses less digits than its factorization.

827761530813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406363156.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 827761530813 in words is "eight hundred twenty-seven billion, seven hundred sixty-one million, five hundred thirty thousand, eight hundred thirteen".