61441333543 has 12 divisors (see below), whose sum is σ = 65654886360. Its totient is φ = 57338729712.

The previous prime is 61441333529. The next prime is 61441333553. The reversal of 61441333543 is 34533314416.

It is a de Polignac number, because none of the positive numbers 2^k-61441333543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61441333553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274896 + ... + 445477.

It is an arithmetic number, because the mean of its divisors is an integer number (5471240530).

Almost surely, 2^61441333543 is an apocalyptic number.

61441333543 is a deficient number, since it is larger than the sum of its proper divisors (4213552817).

61441333543 is an equidigital number, since it uses as much as digits as its factorization.

61441333543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720526 (or 720459 counting only the distinct ones).

The product of its digits is 155520, while the sum is 37.

Adding to 61441333543 its reverse (34533314416), we get a palindrome (95974647959).

The spelling of 61441333543 in words is "sixty-one billion, four hundred forty-one million, three hundred thirty-three thousand, five hundred forty-three".