61126562269 has 2 divisors, whose sum is σ = 61126562270. Its totient is φ = 61126562268.

The previous prime is 61126562179. The next prime is 61126562293. The reversal of 61126562269 is 96226562116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48295336644 + 12831225625 = 219762^2 + 113275^2 .

It is a cyclic number.

It is not a de Polignac number, because 61126562269 - 2⁷ = 61126562141 is a prime.

It is a super-3 number, since 3×61126562269³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61126562069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30563281134 + 30563281135.

It is an arithmetic number, because the mean of its divisors is an integer number (30563281135).

Almost surely, 2^61126562269 is an apocalyptic number.

It is an amenable number.

61126562269 is a deficient number, since it is larger than the sum of its proper divisors (1).

61126562269 is an equidigital number, since it uses as much as digits as its factorization.

61126562269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The spelling of 61126562269 in words is "sixty-one billion, one hundred twenty-six million, five hundred sixty-two thousand, two hundred sixty-nine".