88911908761 has 9 divisors (see below), whose sum is σ = 96281589981. Its totient is φ = 82068952992.

The previous prime is 88911908747. The next prime is 88911908797. The reversal of 88911908761 is 16780911988.

The square root of 88911908761 is 298181.

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 33130916361 + 55780992400 = 182019^2 + 236180^2 .

It is not a de Polignac number, because 88911908761 - 2⁹ = 88911908249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88911908696 and 88911908705.

It is not an unprimeable number, because it can be changed into a prime (88911908711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3864885 + ... + 3887821.

Almost surely, 2^88911908761 is an apocalyptic number.

88911908761 is the 298181-st square number.

88911908761 is the 149091-st centered octagonal number.

It is an amenable number.

88911908761 is a deficient number, since it is larger than the sum of its proper divisors (7369681220).

88911908761 is an frugal number, since it uses more digits than its factorization.

88911908761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45900 (or 22950 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 58.

The spelling of 88911908761 in words is "eighty-eight billion, nine hundred eleven million, nine hundred eight thousand, seven hundred sixty-one".