852248998661 has 2 divisors, whose sum is σ = 852248998662. Its totient is φ = 852248998660.

The previous prime is 852248998649. The next prime is 852248998687. The reversal of 852248998661 is 166899842258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848112064900 + 4136933761 = 920930^2 + 64319^2 .

It is a cyclic number.

It is not a de Polignac number, because 852248998661 - 2¹⁸ = 852248736517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 852248998591 and 852248998600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (852248998631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426124499330 + 426124499331.

It is an arithmetic number, because the mean of its divisors is an integer number (426124499331).

Almost surely, 2^852248998661 is an apocalyptic number.

It is an amenable number.

852248998661 is a deficient number, since it is larger than the sum of its proper divisors (1).

852248998661 is an equidigital number, since it uses as much as digits as its factorization.

852248998661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119439360, while the sum is 68.

The spelling of 852248998661 in words is "eight hundred fifty-two billion, two hundred forty-eight million, nine hundred ninety-eight thousand, six hundred sixty-one".