61040242740277 has 2 divisors, whose sum is σ = 61040242740278. Its totient is φ = 61040242740276.

The previous prime is 61040242740271. The next prime is 61040242740287. The reversal of 61040242740277 is 77204724204016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54341872429636 + 6698370310641 = 7371694^2 + 2588121^2 .

It is a cyclic number.

It is not a de Polignac number, because 61040242740277 - 2¹¹ = 61040242738229 is a prime.

It is a super-2 number, since 2×61040242740277² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61040242740271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30520121370138 + 30520121370139.

It is an arithmetic number, because the mean of its divisors is an integer number (30520121370139).

Almost surely, 2^{61040242740277} is an apocalyptic number.

It is an amenable number.

61040242740277 is a deficient number, since it is larger than the sum of its proper divisors (1).

61040242740277 is an equidigital number, since it uses as much as digits as its factorization.

61040242740277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 61040242740277 in words is "sixty-one trillion, forty billion, two hundred forty-two million, seven hundred forty thousand, two hundred seventy-seven".