61354715029 has 2 divisors, whose sum is σ = 61354715030. Its totient is φ = 61354715028.

The previous prime is 61354714999. The next prime is 61354715033. The reversal of 61354715029 is 92051745316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60698176900 + 656538129 = 246370^2 + 25623^2 .

It is a cyclic number.

It is not a de Polignac number, because 61354715029 - 2¹³ = 61354706837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61354710029) 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, 30677357514 + 30677357515.

It is an arithmetic number, because the mean of its divisors is an integer number (30677357515).

Almost surely, 2^61354715029 is an apocalyptic number.

It is an amenable number.

61354715029 is a deficient number, since it is larger than the sum of its proper divisors (1).

61354715029 is an equidigital number, since it uses as much as digits as its factorization.

61354715029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 61354715029 in words is "sixty-one billion, three hundred fifty-four million, seven hundred fifteen thousand, twenty-nine".