61527342313 has 4 divisors (see below), whose sum is σ = 61597181268. Its totient is φ = 61457503360.

The previous prime is 61527342277. The next prime is 61527342341. The reversal of 61527342313 is 31324372516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11314151424 + 50213190889 = 106368^2 + 224083^2 .

It is a cyclic number.

It is not a de Polignac number, because 61527342313 - 2²¹ = 61525245161 is a prime.

It is a super-2 number, since 2×61527342313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61527342713) 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 in 3 ways as a sum of consecutive naturals, for example, 34918156 + ... + 34919917.

It is an arithmetic number, because the mean of its divisors is an integer number (15399295317).

Almost surely, 2^61527342313 is an apocalyptic number.

It is an amenable number.

61527342313 is a deficient number, since it is larger than the sum of its proper divisors (69838955).

61527342313 is an equidigital number, since it uses as much as digits as its factorization.

61527342313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69838954.

The product of its digits is 90720, while the sum is 37.

The spelling of 61527342313 in words is "sixty-one billion, five hundred twenty-seven million, three hundred forty-two thousand, three hundred thirteen".