61125883569 has 12 divisors (see below), whose sum is σ = 90446429892. Its totient is φ = 39756672000.

The previous prime is 61125883549. The next prime is 61125883589. The reversal of 61125883569 is 96538852116.

61125883569 is a `hidden beast` number, since 6 + 1 + 1 + 2 + 588 + 3 + 56 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (61125883549) and next prime (61125883589).

It can be written as a sum of positive squares in 2 ways, for example, as 6004235169 + 55121648400 = 77487^2 + 234780^2 .

It is not a de Polignac number, because 61125883569 - 2¹⁷ = 61125752497 is a prime.

It is a super-2 number, since 2×61125883569² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61125883549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82826032 + ... + 82826769.

It is an arithmetic number, because the mean of its divisors is an integer number (7537202491).

Almost surely, 2^61125883569 is an apocalyptic number.

It is an amenable number.

61125883569 is a deficient number, since it is larger than the sum of its proper divisors (29320546323).

61125883569 is a wasteful number, since it uses less digits than its factorization.

61125883569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165652848 (or 165652845 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 61125883569 in words is "sixty-one billion, one hundred twenty-five million, eight hundred eighty-three thousand, five hundred sixty-nine".