61260122747 has 2 divisors, whose sum is σ = 61260122748. Its totient is φ = 61260122746.

The previous prime is 61260122713. The next prime is 61260122771. The reversal of 61260122747 is 74722106216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61260122747 - 2²² = 61255928443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61260122747.

It is not a weakly prime, because it can be changed into another prime (61260122347) 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, 30630061373 + 30630061374.

It is an arithmetic number, because the mean of its divisors is an integer number (30630061374).

Almost surely, 2^61260122747 is an apocalyptic number.

61260122747 is a deficient number, since it is larger than the sum of its proper divisors (1).

61260122747 is an equidigital number, since it uses as much as digits as its factorization.

61260122747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 61260122747 in words is "sixty-one billion, two hundred sixty million, one hundred twenty-two thousand, seven hundred forty-seven".