61740865337 has 4 divisors (see below), whose sum is σ = 61741454196. Its totient is φ = 61740276480.

The previous prime is 61740865321. The next prime is 61740865343. The reversal of 61740865337 is 73356804716.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13048264441 + 48692600896 = 114229^2 + 220664^2 .

It is a cyclic number.

It is not a de Polignac number, because 61740865337 - 2⁴ = 61740865321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61740868337) 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 in 3 ways as a sum of consecutive naturals, for example, 89708 + ... + 362669.

It is an arithmetic number, because the mean of its divisors is an integer number (15435363549).

Almost surely, 2^61740865337 is an apocalyptic number.

It is an amenable number.

61740865337 is a deficient number, since it is larger than the sum of its proper divisors (588859).

61740865337 is a wasteful number, since it uses less digits than its factorization.

61740865337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588858.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 61740865337 in words is "sixty-one billion, seven hundred forty million, eight hundred sixty-five thousand, three hundred thirty-seven".