61444053259 has 2 divisors, whose sum is σ = 61444053260. Its totient is φ = 61444053258.

The previous prime is 61444053199. The next prime is 61444053373. The reversal of 61444053259 is 95235044416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61444053259 - 2⁷ = 61444053131 is a prime.

It is not a weakly prime, because it can be changed into another prime (61444051259) 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, 30722026629 + 30722026630.

It is an arithmetic number, because the mean of its divisors is an integer number (30722026630).

Almost surely, 2^61444053259 is an apocalyptic number.

61444053259 is a deficient number, since it is larger than the sum of its proper divisors (1).

61444053259 is an equidigital number, since it uses as much as digits as its factorization.

61444053259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 61444053259 in words is "sixty-one billion, four hundred forty-four million, fifty-three thousand, two hundred fifty-nine".