61443054321250 has 40 divisors (see below), whose sum is σ = 131621555469888. Its totient is φ = 21066190050000.

The previous prime is 61443054321203. The next prime is 61443054321251. The reversal of 61443054321250 is 5212345034416.

It is not an unprimeable number, because it can be changed into a prime (61443054321251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3511022926 + ... + 3511040425.

Almost surely, 2^{61443054321250} is an apocalyptic number.

61443054321250 is an abundant number, since it is smaller than the sum of its proper divisors (70178501148638).

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

61443054321250 is an equidigital number, since it uses as much as digits as its factorization.

61443054321250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022063380 (or 7022063365 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 61443054321250 its reverse (5212345034416), we get a palindrome (66655399355666).

The spelling of 61443054321250 in words is "sixty-one trillion, four hundred forty-three billion, fifty-four million, three hundred twenty-one thousand, two hundred fifty".