61275346571 has 2 divisors, whose sum is σ = 61275346572. Its totient is φ = 61275346570.

The previous prime is 61275346487. The next prime is 61275346633. The reversal of 61275346571 is 17564357216.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61275346571 is a prime.

It is a super-2 number, since 2×61275346571² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61275306571) 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, 30637673285 + 30637673286.

It is an arithmetic number, because the mean of its divisors is an integer number (30637673286).

Almost surely, 2^61275346571 is an apocalyptic number.

61275346571 is a deficient number, since it is larger than the sum of its proper divisors (1).

61275346571 is an equidigital number, since it uses as much as digits as its factorization.

61275346571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 47.

The spelling of 61275346571 in words is "sixty-one billion, two hundred seventy-five million, three hundred forty-six thousand, five hundred seventy-one".