61461406339 has 2 divisors, whose sum is σ = 61461406340. Its totient is φ = 61461406338.

The previous prime is 61461406301. The next prime is 61461406343. The reversal of 61461406339 is 93360416416.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61461406339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61461406295 and 61461406304.

It is not a weakly prime, because it can be changed into another prime (61461406639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30730703169 + 30730703170.

It is an arithmetic number, because the mean of its divisors is an integer number (30730703170).

Almost surely, 2^61461406339 is an apocalyptic number.

61461406339 is a deficient number, since it is larger than the sum of its proper divisors (1).

61461406339 is an equidigital number, since it uses as much as digits as its factorization.

61461406339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 61461406339 in words is "sixty-one billion, four hundred sixty-one million, four hundred six thousand, three hundred thirty-nine".