61376262529 has 2 divisors, whose sum is σ = 61376262530. Its totient is φ = 61376262528.

The previous prime is 61376262491. The next prime is 61376262553. The reversal of 61376262529 is 92526267316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42600960000 + 18775302529 = 206400^2 + 137023^2 .

It is a cyclic number.

It is not a de Polignac number, because 61376262529 - 2³¹ = 59228778881 is a prime.

It is a super-3 number, since 3×61376262529³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (61376262589) 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, 30688131264 + 30688131265.

It is an arithmetic number, because the mean of its divisors is an integer number (30688131265).

Almost surely, 2^61376262529 is an apocalyptic number.

It is an amenable number.

61376262529 is a deficient number, since it is larger than the sum of its proper divisors (1).

61376262529 is an equidigital number, since it uses as much as digits as its factorization.

61376262529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 49.

The spelling of 61376262529 in words is "sixty-one billion, three hundred seventy-six million, two hundred sixty-two thousand, five hundred twenty-nine".