1825616586461 has 2 divisors, whose sum is σ = 1825616586462. Its totient is φ = 1825616586460.

The previous prime is 1825616586457. The next prime is 1825616586491. The reversal of 1825616586461 is 1646856165281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1825487423236 + 129163225 = 1351106^2 + 11365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825616586461 - 2² = 1825616586457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1825616586461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825616586401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912808293230 + 912808293231.

It is an arithmetic number, because the mean of its divisors is an integer number (912808293231).

Almost surely, 2^{1825616586461} is an apocalyptic number.

It is an amenable number.

1825616586461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825616586461 is an equidigital number, since it uses as much as digits as its factorization.

1825616586461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16588800, while the sum is 59.

The spelling of 1825616586461 in words is "one trillion, eight hundred twenty-five billion, six hundred sixteen million, five hundred eighty-six thousand, four hundred sixty-one".