87025422919109 has 2 divisors, whose sum is σ = 87025422919110. Its totient is φ = 87025422919108.

The previous prime is 87025422919081. The next prime is 87025422919153. The reversal of 87025422919109 is 90191922452078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75991266986209 + 11034155932900 = 8717297^2 + 3321770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87025422919109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87025422919159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43512711459554 + 43512711459555.

It is an arithmetic number, because the mean of its divisors is an integer number (43512711459555).

Almost surely, 2^{87025422919109} is an apocalyptic number.

It is an amenable number.

87025422919109 is a deficient number, since it is larger than the sum of its proper divisors (1).

87025422919109 is an equidigital number, since it uses as much as digits as its factorization.

87025422919109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 87025422919109 in words is "eighty-seven trillion, twenty-five billion, four hundred twenty-two million, nine hundred nineteen thousand, one hundred nine".