61107427600 has 120 divisors (see below), whose sum is σ = 154930574880. Its totient is φ = 23097600000.

The previous prime is 61107427567. The next prime is 61107427613. The reversal of 61107427600 is 672470116.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3037575 + ... + 3057625.

It is an arithmetic number, because the mean of its divisors is an integer number (1291088124).

Almost surely, 2^61107427600 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 61107427600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77465287440).

61107427600 is an abundant number, since it is smaller than the sum of its proper divisors (93823147280).

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

61107427600 is a wasteful number, since it uses less digits than its factorization.

61107427600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20489 (or 20478 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

Adding to 61107427600 its reverse (672470116), we get a palindrome (61779897716).

The spelling of 61107427600 in words is "sixty-one billion, one hundred seven million, four hundred twenty-seven thousand, six hundred".