85530751489 has 2 divisors, whose sum is σ = 85530751490. Its totient is φ = 85530751488.

The previous prime is 85530751457. The next prime is 85530751507. The reversal of 85530751489 is 98415703558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85529927025 + 824464 = 292455^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 85530751489 - 2⁵ = 85530751457 is a prime.

It is not a weakly prime, because it can be changed into another prime (85530751289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42765375744 + 42765375745.

It is an arithmetic number, because the mean of its divisors is an integer number (42765375745).

Almost surely, 2^85530751489 is an apocalyptic number.

It is an amenable number.

85530751489 is a deficient number, since it is larger than the sum of its proper divisors (1).

85530751489 is an equidigital number, since it uses as much as digits as its factorization.

85530751489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 85530751489 in words is "eighty-five billion, five hundred thirty million, seven hundred fifty-one thousand, four hundred eighty-nine".