61306251260 has 24 divisors (see below), whose sum is σ = 128753086896. Its totient is φ = 24520603520.

The previous prime is 61306251221. The next prime is 61306251283. The reversal of 61306251260 is 6215260316.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162719 + ... + 386121.

It is an arithmetic number, because the mean of its divisors is an integer number (5364711954).

Almost surely, 2^61306251260 is an apocalyptic number.

It is an amenable number.

61306251260 is an abundant number, since it is smaller than the sum of its proper divisors (67446835636).

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

61306251260 is a wasteful number, since it uses less digits than its factorization.

61306251260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237133 (or 237131 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 61306251260 in words is "sixty-one billion, three hundred six million, two hundred fifty-one thousand, two hundred sixty".