85461622949 has 2 divisors, whose sum is σ = 85461622950. Its totient is φ = 85461622948.

The previous prime is 85461622933. The next prime is 85461622973. The reversal of 85461622949 is 94922616458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73714965025 + 11746657924 = 271505^2 + 108382^2 .

It is a cyclic number.

It is not a de Polignac number, because 85461622949 - 2⁴ = 85461622933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85461622894 and 85461622903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85461622919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42730811474 + 42730811475.

It is an arithmetic number, because the mean of its divisors is an integer number (42730811475).

Almost surely, 2^85461622949 is an apocalyptic number.

It is an amenable number.

85461622949 is a deficient number, since it is larger than the sum of its proper divisors (1).

85461622949 is an equidigital number, since it uses as much as digits as its factorization.

85461622949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 56.

The spelling of 85461622949 in words is "eighty-five billion, four hundred sixty-one million, six hundred twenty-two thousand, nine hundred forty-nine".