61844444816 has 40 divisors (see below), whose sum is σ = 149390480064. Its totient is φ = 24095237760.

The previous prime is 61844444807. The next prime is 61844444843.

61844444816 is nontrivially palindromic in base 10.

61844444816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25097975 + ... + 25100438.

Almost surely, 2^61844444816 is an apocalyptic number.

It is an amenable number.

61844444816 is an abundant number, since it is smaller than the sum of its proper divisors (87546035248).

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

61844444816 is a wasteful number, since it uses less digits than its factorization.

61844444816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50198439 (or 50198433 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 50.

The spelling of 61844444816 in words is "sixty-one billion, eight hundred forty-four million, four hundred forty-four thousand, eight hundred sixteen".