61323566371 has 2 divisors, whose sum is σ = 61323566372. Its totient is φ = 61323566370.

The previous prime is 61323566351. The next prime is 61323566377. The reversal of 61323566371 is 17366532316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61323566371 - 2⁹ = 61323565859 is a prime.

It is not a weakly prime, because it can be changed into another prime (61323566377) 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, 30661783185 + 30661783186.

It is an arithmetic number, because the mean of its divisors is an integer number (30661783186).

Almost surely, 2^61323566371 is an apocalyptic number.

61323566371 is a deficient number, since it is larger than the sum of its proper divisors (1).

61323566371 is an equidigital number, since it uses as much as digits as its factorization.

61323566371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 43.

The spelling of 61323566371 in words is "sixty-one billion, three hundred twenty-three million, five hundred sixty-six thousand, three hundred seventy-one".