88543680389 has 2 divisors, whose sum is σ = 88543680390. Its totient is φ = 88543680388.

The previous prime is 88543680377. The next prime is 88543680419. The reversal of 88543680389 is 98308634588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59162292289 + 29381388100 = 243233^2 + 171410^2 .

It is a cyclic number.

It is not a de Polignac number, because 88543680389 - 2²⁴ = 88526903173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88543685389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44271840194 + 44271840195.

It is an arithmetic number, because the mean of its divisors is an integer number (44271840195).

Almost surely, 2^88543680389 is an apocalyptic number.

It is an amenable number.

88543680389 is a deficient number, since it is larger than the sum of its proper divisors (1).

88543680389 is an equidigital number, since it uses as much as digits as its factorization.

88543680389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39813120, while the sum is 62.

The spelling of 88543680389 in words is "eighty-eight billion, five hundred forty-three million, six hundred eighty thousand, three hundred eighty-nine".