3285810527861 has 2 divisors, whose sum is σ = 3285810527862. Its totient is φ = 3285810527860.

The previous prime is 3285810527851. The next prime is 3285810527873. The reversal of 3285810527861 is 1687250185823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2858838456100 + 426972071761 = 1690810^2 + 653431^2 .

It is a cyclic number.

It is not a de Polignac number, because 3285810527861 - 2¹⁰ = 3285810526837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3285810527797 and 3285810527806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3285810527801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1642905263930 + 1642905263931.

It is an arithmetic number, because the mean of its divisors is an integer number (1642905263931).

Almost surely, 2^{3285810527861} is an apocalyptic number.

It is an amenable number.

3285810527861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3285810527861 is an equidigital number, since it uses as much as digits as its factorization.

3285810527861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 3285810527861 in words is "three trillion, two hundred eighty-five billion, eight hundred ten million, five hundred twenty-seven thousand, eight hundred sixty-one".