61227744000 has 288 divisors, whose sum is σ = 215336511936. Its totient is φ = 15366553600.

The previous prime is 61227743981. The next prime is 61227744031. The reversal of 61227744000 is 44772216.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1613242 + ... + 1650758.

It is an arithmetic number, because the mean of its divisors is an integer number (747696222).

Almost surely, 2^61227744000 is an apocalyptic number.

61227744000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61227744000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107668255968).

61227744000 is an abundant number, since it is smaller than the sum of its proper divisors (154108767936).

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

61227744000 is a wasteful number, since it uses less digits than its factorization.

61227744000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37568 (or 37544 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 61227744000 in words is "sixty-one billion, two hundred twenty-seven million, seven hundred forty-four thousand".