885598413521 has 2 divisors, whose sum is σ = 885598413522. Its totient is φ = 885598413520.

The previous prime is 885598413503. The next prime is 885598413551. The reversal of 885598413521 is 125314895588.

It is a happy number.

885598413521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743345730625 + 142252682896 = 862175^2 + 377164^2 .

It is a cyclic number.

It is not a de Polignac number, because 885598413521 - 2¹⁸ = 885598151377 is a prime.

It is not a weakly prime, because it can be changed into another prime (885598413551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442799206760 + 442799206761.

It is an arithmetic number, because the mean of its divisors is an integer number (442799206761).

Almost surely, 2^885598413521 is an apocalyptic number.

It is an amenable number.

885598413521 is a deficient number, since it is larger than the sum of its proper divisors (1).

885598413521 is an equidigital number, since it uses as much as digits as its factorization.

885598413521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824000, while the sum is 59.

The spelling of 885598413521 in words is "eight hundred eighty-five billion, five hundred ninety-eight million, four hundred thirteen thousand, five hundred twenty-one".