88693443281 has 2 divisors, whose sum is σ = 88693443282. Its totient is φ = 88693443280.

The previous prime is 88693443277. The next prime is 88693443283. The reversal of 88693443281 is 18234439688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49457756881 + 39235686400 = 222391^2 + 198080^2 .

It is a cyclic number.

It is not a de Polignac number, because 88693443281 - 2² = 88693443277 is a prime.

It is a super-2 number, since 2×88693443281² (a number of 23 digits) contains 22 as substring.

Together with 88693443283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88693443283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44346721640 + 44346721641.

It is an arithmetic number, because the mean of its divisors is an integer number (44346721641).

Almost surely, 2^88693443281 is an apocalyptic number.

It is an amenable number.

88693443281 is a deficient number, since it is larger than the sum of its proper divisors (1).

88693443281 is an equidigital number, since it uses as much as digits as its factorization.

88693443281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7962624, while the sum is 56.

The spelling of 88693443281 in words is "eighty-eight billion, six hundred ninety-three million, four hundred forty-three thousand, two hundred eighty-one".