88184647681 has 27 divisors (see below), whose sum is σ = 97551912297. Its totient is φ = 79680038880.

The previous prime is 88184647669. The next prime is 88184647697. The reversal of 88184647681 is 18674648188.

The square root of 88184647681 is 296959.

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 2288761281 + 85895886400 = 47841^2 + 293080^2 .

It is not a de Polignac number, because 88184647681 - 2¹³ = 88184639489 is a prime.

It is a super-2 number, since 2×88184647681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88184647601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 204604536 + ... + 204604966.

Almost surely, 2^88184647681 is an apocalyptic number.

88184647681 is the 296959-th square number.

88184647681 is the 148480-th centered octagonal number.

It is an amenable number.

88184647681 is a deficient number, since it is larger than the sum of its proper divisors (9367264616).

88184647681 is an frugal number, since it uses more digits than its factorization.

88184647681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994 (or 497 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 61.

The spelling of 88184647681 in words is "eighty-eight billion, one hundred eighty-four million, six hundred forty-seven thousand, six hundred eighty-one".