61290589859 has 2 divisors, whose sum is σ = 61290589860. Its totient is φ = 61290589858.

The previous prime is 61290589817. The next prime is 61290589883. The reversal of 61290589859 is 95898509216.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61290589859 is a prime.

It is not a weakly prime, because it can be changed into another prime (61290580859) 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, 30645294929 + 30645294930.

It is an arithmetic number, because the mean of its divisors is an integer number (30645294930).

Almost surely, 2^61290589859 is an apocalyptic number.

61290589859 is a deficient number, since it is larger than the sum of its proper divisors (1).

61290589859 is an equidigital number, since it uses as much as digits as its factorization.

61290589859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 62.

The spelling of 61290589859 in words is "sixty-one billion, two hundred ninety million, five hundred eighty-nine thousand, eight hundred fifty-nine".