61228144300 has 54 divisors (see below), whose sum is σ = 134892756068. Its totient is φ = 24117735840.

The previous prime is 61228144297. The next prime is 61228144321. The reversal of 61228144300 is 344182216.

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 17 ways as a sum of consecutive naturals, for example, 20252589 + ... + 20255611.

Almost surely, 2^61228144300 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 61228144300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67446378034).

61228144300 is an abundant number, since it is smaller than the sum of its proper divisors (73664611768).

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

61228144300 is an equidigital number, since it uses as much as digits as its factorization.

61228144300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 61228144300 in words is "sixty-one billion, two hundred twenty-eight million, one hundred forty-four thousand, three hundred".