61842300061 has 2 divisors, whose sum is σ = 61842300062. Its totient is φ = 61842300060.

The previous prime is 61842300053. The next prime is 61842300071. The reversal of 61842300061 is 16000324816.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58059312025 + 3782988036 = 240955^2 + 61506^2 .

It is a cyclic number.

It is not a de Polignac number, because 61842300061 - 2³ = 61842300053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61842299996 and 61842300032.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61842300011) 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, 30921150030 + 30921150031.

It is an arithmetic number, because the mean of its divisors is an integer number (30921150031).

Almost surely, 2^61842300061 is an apocalyptic number.

It is an amenable number.

61842300061 is a deficient number, since it is larger than the sum of its proper divisors (1).

61842300061 is an equidigital number, since it uses as much as digits as its factorization.

61842300061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 61842300061 its reverse (16000324816), we get a palindrome (77842624877).

The spelling of 61842300061 in words is "sixty-one billion, eight hundred forty-two million, three hundred thousand, sixty-one".