61088385761 has 8 divisors (see below), whose sum is σ = 67565533224. Its totient is φ = 54865244160.

The previous prime is 61088385737. The next prime is 61088385811. The reversal of 61088385761 is 16758388016.

61088385761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1725987025 + 59362398736 = 41545^2 + 243644^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61088385761 - 2²² = 61084191457 is a prime.

It is a super-3 number, since 3×61088385761³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61088385961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63500960 + ... + 63501921.

It is an arithmetic number, because the mean of its divisors is an integer number (8445691653).

Almost surely, 2^61088385761 is an apocalyptic number.

It is an amenable number.

61088385761 is a deficient number, since it is larger than the sum of its proper divisors (6477147463).

61088385761 is a wasteful number, since it uses less digits than its factorization.

61088385761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127002931.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 61088385761 in words is "sixty-one billion, eighty-eight million, three hundred eighty-five thousand, seven hundred sixty-one".