61000005760 has 32 divisors (see below), whose sum is σ = 145828140300. Its totient is φ = 24400002048.

The previous prime is 61000005733. The next prime is 61000005809. The reversal of 61000005760 is 6750000016.

It can be written as a sum of positive squares in 2 ways, for example, as 60401909824 + 598095936 = 245768^2 + 24456^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47655615 + ... + 47656894.

Almost surely, 2^61000005760 is an apocalyptic number.

It is an amenable number.

61000005760 is an abundant number, since it is smaller than the sum of its proper divisors (84828134540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61000005760 is an equidigital number, since it uses as much as digits as its factorization.

61000005760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95312528 (or 95312516 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 61000005760 its reverse (6750000016), we get a palindrome (67750005776).

The spelling of 61000005760 in words is "sixty-one billion, five thousand, seven hundred sixty".