61827375680 has 112 divisors (see below), whose sum is σ = 168791510016. Its totient is φ = 21130844160.

The previous prime is 61827375671. The next prime is 61827375683. The reversal of 61827375680 is 8657372816.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (61827375683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666545 + ... + 753615.

Almost surely, 2^61827375680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61827375680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84395755008).

61827375680 is an abundant number, since it is smaller than the sum of its proper divisors (106964134336).

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

61827375680 is a wasteful number, since it uses less digits than its factorization.

61827375680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87412 (or 87402 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 61827375680 in words is "sixty-one billion, eight hundred twenty-seven million, three hundred seventy-five thousand, six hundred eighty".