61438883416 has 16 divisors (see below), whose sum is σ = 115201789200. Its totient is φ = 30718406304.

The previous prime is 61438883381. The next prime is 61438883419.

61438883416 is nontrivially palindromic in base 10.

61438883416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61438883419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161130 + ... + 385798.

It is an arithmetic number, because the mean of its divisors is an integer number (7200111825).

Almost surely, 2^61438883416 is an apocalyptic number.

It is an amenable number.

61438883416 is a deficient number, since it is larger than the sum of its proper divisors (53762905784).

61438883416 is a wasteful number, since it uses less digits than its factorization.

61438883416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258858 (or 258854 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 52.

The spelling of 61438883416 in words is "sixty-one billion, four hundred thirty-eight million, eight hundred eighty-three thousand, four hundred sixteen".